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2. Genome-wide association study of BNT162b2 vaccine-related myocarditis identifies potential predisposing functional areas in Hong Kong adolescents

Author

Chun Hing She, Hing Wai Tsang, Xingtian Yang, Sabrina SL Tsao, Clara SM Tang, Sophelia HS Chan, Mike YW Kwan, Gilbert T Chua, Wanling Yang, and Patrick Ip

Subjects
Vaccine-induced myocarditis, BNT162b2 vaccine, Genetic risk predisposition, Clustering, Vaccine side effect, Genetics, QH426-470
Abstract

Abstract Vaccine-related myocarditis associated with the BNT162b2 vaccine is a rare complication, with a higher risk observed in male adolescents. However, the contribution of genetic factors to this condition remains uncertain. In this study, we conducted a comprehensive genetic association analysis in a cohort of 43 Hong Kong Chinese adolescents who were diagnosed with myocarditis shortly after receiving the BNT162b2 mRNA COVID-19 vaccine. A comparison of whole-genome sequencing data was performed between the confirmed myocarditis cases and a control group of 481 healthy individuals. To narrow down potential genomic regions of interest, we employed a novel clustering approach called ClusterAnalyzer, which prioritised 2,182 genomic regions overlapping with 1,499 genes for further investigation. Our pathway analysis revealed significant enrichment of these genes in functions related to cardiac conduction, ion channel activity, plasma membrane adhesion, and axonogenesis. These findings suggest a potential genetic predisposition in these specific functional areas that may contribute to the observed side effect of the vaccine. Nevertheless, further validation through larger-scale studies is imperative to confirm these findings. Given the increasing prominence of mRNA vaccines as a promising strategy for disease prevention and treatment, understanding the genetic factors associated with vaccine-related myocarditis assumes paramount importance. Our study provides valuable insights that significantly advance our understanding in this regard and serve as a valuable foundation for future research endeavours in this field.

Published
2024
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3. Human germline heterozygous gain-of-function STAT6 variants cause severe allergic disease

Author

Sharma, Mehul, Leung, Daniel, Momenilandi, Mana, Jones, Lauren CW, Pacillo, Lucia, James, Alyssa E, Murrell, Jill R, Delafontaine, Selket, Maimaris, Jesmeen, Vaseghi-Shanjani, Maryam, Del Bel, Kate L, Lu, Henry Y, Chua, Gilbert T, Di Cesare, Silvia, Fornes, Oriol, Liu, Zhongyi, Di Matteo, Gigliola, Fu, Maggie P, Amodio, Donato, San Tam, Issan Yee, Chan, Gavin Shueng Wai, Sharma, Ashish A, Dalmann, Joshua, van der Lee, Robin, Blanchard-Rohner, Géraldine, Lin, Susan, Philippot, Quentin, Richmond, Phillip A, Lee, Jessica J, Matthews, Allison, Seear, Michael, Turvey, Alexandra K, Philips, Rachael L, Brown-Whitehorn, Terri F, Gray, Christopher J, Izumi, Kosuke, Treat, James R, Wood, Kathleen H, Lack, Justin, Khleborodova, Asya, Niemela, Julie E, Yang, Xingtian, Liang, Rui, Kui, Lin, Wong, Christina Sze Man, Poon, Grace Wing Kit, Hoischen, Alexander, van der Made, Caspar I, Yang, Jing, Chan, Koon Wing, Da Rosa Duque, Jaime Sou, Lee, Pamela Pui Wah, Ho, Marco Hok Kung, Chung, Brian Hon Yin, Le, Huong Thi Minh, Yang, Wanling, Rohani, Pejman, Fouladvand, Ali, Rokni-Zadeh, Hassan, Changi-Ashtiani, Majid, Miryounesi, Mohammad, Puel, Anne, Shahrooei, Mohammad, Finocchi, Andrea, Rossi, Paolo, Rivalta, Beatrice, Cifaldi, Cristina, Novelli, Antonio, Passarelli, Chiara, Arasi, Stefania, Bullens, Dominique, Sauer, Kate, Claeys, Tania, Biggs, Catherine M, Morris, Emma C, Rosenzweig, Sergio D, O’Shea, John J, Wasserman, Wyeth W, Bedford, H Melanie, van Karnebeek, Clara DM, Palma, Paolo, Burns, Siobhan O, Meyts, Isabelle, Casanova, Jean-Laurent, Lyons, Jonathan J, Parvaneh, Nima, Van Nguyen, Anh Thi, Cancrini, Caterina, Heimall, Jennifer, Ahmed, Hanan, McKinnon, Margaret L, Lau, Yu Lung, Béziat, Vivien, and Turvey, Stuart E

Subjects
Genetics, Rare Diseases, Clinical Research, 2.1 Biological and endogenous factors, Aetiology, Inflammatory and immune system, Humans, STAT6 Transcription Factor, Gain of Function Mutation, Asthma, Food Hypersensitivity, Immunoglobulin E, Medical and Health Sciences, Immunology
Abstract

STAT6 (signal transducer and activator of transcription 6) is a transcription factor that plays a central role in the pathophysiology of allergic inflammation. We have identified 16 patients from 10 families spanning three continents with a profound phenotype of early-life onset allergic immune dysregulation, widespread treatment-resistant atopic dermatitis, hypereosinophilia with esosinophilic gastrointestinal disease, asthma, elevated serum IgE, IgE-mediated food allergies, and anaphylaxis. The cases were either sporadic (seven kindreds) or followed an autosomal dominant inheritance pattern (three kindreds). All patients carried monoallelic rare variants in STAT6 and functional studies established their gain-of-function (GOF) phenotype with sustained STAT6 phosphorylation, increased STAT6 target gene expression, and TH2 skewing. Precision treatment with the anti-IL-4Rα antibody, dupilumab, was highly effective improving both clinical manifestations and immunological biomarkers. This study identifies heterozygous GOF variants in STAT6 as a novel autosomal dominant allergic disorder. We anticipate that our discovery of multiple kindreds with germline STAT6 GOF variants will facilitate the recognition of more affected individuals and the full definition of this new primary atopic disorder.

Published
2023

5. Safety and effectiveness of the Canadian food ladders for children with IgE-mediated food allergies to cow’s milk and/or egg

Author

Alanna Chomyn, Edmond S. Chan, Joanne Yeung, Scott Cameron, Gilbert T. Chua, Timothy K. Vander Leek, Brock A Williams, Lianne Soller, Elissa M. Abrams, Raymond Mak, and Tiffany Wong

Subjects
Food ladders, Food allergy, Cow’s milk allergy, Egg allergy, Oral immunotherapy, Immunologic diseases. Allergy, RC581-607
Abstract

Abstract Background Food ladders are tools designed to facilitate home-based dietary advancement in children with food allergies through stepwise exposures to increasingly allergenic forms of milk and egg. Several studies have now documented safety and efficacy of food ladders. In 2021, we published a Canadian adaptation of the previously existing milk and egg ladders originating in Europe using foods more readily available/consumed in Canada. Our study adds to the growing body of evidence supporting food ladder use and provides safety and effectiveness data for our Canadian adaptation of the milk and egg ladders. Methods Surveys were distributed to families of children using the Canadian Milk Ladder and/or the Canadian Egg Ladder at baseline, with follow up surveys at 3 months, 6 months, and 12 months. Data were analyzed using REDCap and descriptive and inferential statistics are presented. Results One hundred and nine participants were started on milk/egg ladders between September 2020 and June 2022. 53 participants responded to follow up surveys. Only 2 of 53 (3.8%) participants reported receiving epinephrine during the study. Severe grade 4 reactions (defined according to the modified World Allergy Organization grading system) were not reported by any participants. Minor cutaneous adverse reactions were common, with about 71% (n = 10/14) of respondents reporting cutaneous adverse reactions by 1 year of food ladder use. An increasing proportion of participants could tolerate most foods from steps 2–4 foods after 3, 6, and 12 months of the food ladder compared to baseline. Conclusion The Canadian food ladders are safe tools for children with cow’s milk and/or egg allergies, and participants tolerated a larger range of foods with food ladder use compared to baseline.

Published
2023
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6. Predictors of anastomotic leak and conduit necrosis after oesophagectomy: Results from the oesophago-gastric anastomosis audit (OGAA)

Author

Halle-Smith, J.M., Kamarajah, S.K., Evans, R.P.T., Nepogodiev, D., Hodson, J., Bundred, J.R., Gockel, I., Gossage, J.A., Isik, A., Kauppila, J.H., Kidane, B., Mahendran, H.A., Negoi, I., Okonta, K.E., Sayyed, R., van Hillegersberg, R., Vohra, R.S., Wijnhoven, B.P.L., Singh, P., Griffiths, E.A., Alderson, D., Bundred, J., Gossage, J., Jefferies, B., McKay, S., Mohamed, I., Siaw- Acheampong, K., Vohra, R., Wanigasooriya, K., Whitehouse, T., Gjata, A., Moreno, J.I., Takeda, F.R., Guevara Castro, R., Bekele, A., Harustiak, T., Kechagias, A., Bagajevas, A., Kennedy, A., Da Roit, A., Azagra, J.S., Mejía-Fernández, L., El Kafsi, J., Sayyed, R.H., Sousa, M., Sampaio, A.S., Blanco, R., Wallner, B., Schneider, P.M., Hsu, P.K., Gananadha, S., Wills, V., Devadas, M., Duong, C., Talbot, M., Hii, M.W., Jacobs, R., Andreollo, N.A., Johnston, B., Darling, G., Isaza-Restrepo, A., Rosero, G., Arias- Amézquita, F., Raptis, D., Gaedcke, J., Reim, D., Izbicki, J., Egberts, J.H., Dikinis, S., Kjaer, D.W., Larsen, M.H., Achiam, M.P., Saarnio, J., Theodorou, D., Liakakos, T., Korkolis, D.P., Robb, W.B., Collins, C., Murphy, T., Reynolds, J., Tonini, V., Migliore, M., Bonavina, L., Valmasoni, M., Bardini, R., Weindelmayer, J., Terashima, M., White, R.E., Alghunaim, E., Elhadi, M., Leon-Takahashi, A.M., Medina-Franco, H., Lau, P.C., Heisterkamp, J., Rosman, C., Beban, G., Babor, R., Gordon, A., Rossaak, J.I., Pal, K.M.I., Qureshi, A.U., Naqi, S.A., Syed, A.A., Barbosa, J., Vicente, C.S., Leite, J., Freire, J., Casaca, R., Costa, R.C.T., Scurtu, R.R., Mogoanta, S.S., Bolca, C., Constantinoiu, S., Sekhniaidze, D., Bjelović, M., So, J.B.Y., Gačevski, G., Loureiro, C., Pera, M., Bianchi, A., Moreno Gijón, M., Martín Fernández, J., Trugeda Carrera, M.S., Vallve-Bernal, M., Cítores Pascual, M.A., Elmahi, S., Halldestam, I., Hedberg, J., Mönig, S., Gutknecht, S., Tez, M., Guner, A., Tirnaksiz, M.B., Colak, E., Sevinç, B., Hindmarsh, A., Khan, I., Khoo, D., Byrom, R., Gokhale, J., Wilkerson, P., Jain, P., Chan, D., Robertson, K., Iftikhar, S., Skipworth, R., Forshaw, M., Higgs, S., Nijjar, R., Viswanath, Y.K.S., Turner, P., Dexter, S., Boddy, A., Allum, W.H., Oglesby, S., Cheong, E., Beardsmore, D., Maynard, N., Berrisford, R., Mercer, S., Puig, S., Melhado, R., Kelty, C., Underwood, T., Dawas, K., Lewis, W., Al-Bahrani, A., Bryce, G., Thomas, M., Arndt, A.T., Palazzo, F., Meguid, R.A., Fergusson, J., Beenen, E., Mosse, C., Salim, J., Cheah, S., Wright, T., Cerdeira, M.P., McQuillan, P., Richardson, M., Liem, H., Spillane, J., Yacob, M., Albadawi, F., Thorpe, T., Dingle, A., Cabalag, C., Loi, K., Fisher, O.M., Ward, S., Read, M., Johnson, M., Bassari, R., Bui, H., Cecconello, I., Sallum, R.A.A., da Rocha, J.R.M., Lopes, L.R., Tercioti, V., Coelho, J.D.S., Ferrer, J.A.P., Buduhan, G., Tan, L., Srinathan, S., Shea, P., Yeung, J., Allison, F., Carroll, P., Vargas-Barato, F., Gonzalez, F., Ortega, J., Nino-Torres, L., Beltrán-García, T.C., Castilla, L., Pineda, M., Bastidas, A., Gómez-Mayorga, J., Cortés, N., Cetares, C., Caceres, S., Duarte, S., Pazdro, A., Snajdauf, M., Faltova, H., Sevcikova, M., Mortensen, P.B., Katballe, N., Ingemann, T., Morten, B., Kruhlikava, I., Ainswort, A.P., Stilling, N.M., Eckardt, J., Holm, J., Thorsteinsson, M., Siemsen, M., Brandt, B., Nega, B., Teferra, E., Tizazu, A., Koivukangas, V., Meriläinen, S., Gruetzmann, R., Krautz, C., Weber, G., Golcher, H., Emons, G., Azizian, A., Ebeling, M., Niebisch, S., Kreuser, N., Albanese, G., Hesse, J., Volovnik, L., Boecher, U., Reeh, M., Triantafyllou, S., Schizas, D., Michalinos, A., Balli, E., Mpoura, M., Charalabopoulos, A., Manatakis, D.K., Balalis, D., Bolger, J., Baban, C., Mastrosimone, A., McAnena, O., Quinn, A., Ó Súilleabháin, C.B., Hennessy, M.M., Ivanovski, I., Khizer, H., Ravi, N., Donlon, N., Cervellera, M., Vaccari, S., Bianchini, S., Sartarelli, l, Asti, E., Bernardi, D., Merigliano, S., Provenzano, L., Scarpa, M., Saadeh, L., Salmaso, B., De Manzoni, G., Giacopuzzi, S., La Mendola, R., De Pasqual, C.A., Tsubosa, Y., Niihara, M., Irino, T., Makuuchi, R., Ishii, K., Mwachiro, M., Fekadu, A., Odera, A., Mwachiro, E., AlShehab, D., Ahmed, H.A., Shebani, A.O., Elhadi, A., Elnagar, F.A., Elnagar, H.F., Makkai-Popa, S.T., Wong, L.F., Yr, Tan, S, Thannimalai, Ca, Ho, Ws, Pang, Jh, Tan, Hnl, Basave, Cortés-González, R., Lagarde, S.M., van Lanschot, J.J.B., Cords, C., Jansen, W.A., Martijnse, I., Matthijsen, R., Bouwense, S., Klarenbeek, B., Verstegen, M., van Workum, F., Ruurda, J.P., van der Sluis, P.C., de Maat, M., Evenett, N., Johnston, P., Patel, R., MacCormick, A., Young, M., Smith, B., Ekwunife, C., Memon, A.H., Shaikh, K., Wajid, A., Khalil, N., Haris, M., Mirza, Z.U., Qudus, S.B.A., Sarwar, M.Z., Shehzadi, A., Raza, A., Jhanzaib, M.H., Farmanali, J., Zakir, Z., Shakeel, O., Nasir, I., Khattak, S., Baig, M., Noor, M.A., Ahmed, H.H., Naeem, A., Pinho, A.C., da Silva, R., Bernardes, A., Campos, J.C., Matos, H., Braga, T., Monteiro, C., Ramos, P., Cabral, F., Gomes, M.P., Martins, P.C., Correia, A.M., Videira, J.F., Ciuce, C., Drasovean, R., Apostu, R., Paitici, S., Racu, A.E., Obleaga, C.V., Beuran, M., Stoica, B., Ciubotaru, C., Negoita, V., Cordos, I., Birla, R.D., Predescu, D., Hoara, P.A., Tomsa, R., Shneider, V., Agasiev, M., Ganjara, I., Gunjić, D., Veselinović, M., Babič, T., Chin, T.S., Shabbir, A., Kim, G., Crnjac, A., Samo, H., Díez del Val, I., Leturio, S., Ramón, J.M., Dal Cero, M., Rifá, S., Rico, M., Pagan Pomar, A., Martinez Corcoles, J.A., Rodicio Miravalles, J.L., Pais, S.A., Turienzo, S.A., Alvarez, L.S., Campos, P.V., Rendo, A.G., García, S.S., Santos, E.P.G., Martínez, E.T., Fernández Díaz, M.J., Magadán Álvarez, C., Concepción Martín, V., Díaz López, C., Rosat Rodrigo, A., Pérez Sánchez, L.E., Bailón Cuadrado, M., Tinoco Carrasco, C., Choolani Bhojwani, E., Sánchez, D.P., Ahmed, M.E., Dzhendov, T., Lindberg, F., Rutegård, M., Sundbom, M., Mickael, C., Colucci, N., Schnider, A., Er, S., Kurnaz, E., Turkyilmaz, S., Turkyilmaz, A., Yildirim, R., Baki, B.E., Akkapulu, N., Karahan, O., Damburaci, N., Hardwick, R., Safranek, P., Sujendran, V., Bennett, J., Afzal, Z., Shrotri, M., Chan, B., Exarchou, K., Gilbert, T., Amalesh, T., Mukherjee, D., Mukherjee, S., Wiggins, T.H., Kennedy, R., McCain, S., Harris, A., Dobson, G., Davies, N., Wilson, I., Mayo, D., Bennett, D., Young, R., Manby, P., Blencowe, N., Schiller, M., Byrne, B., Mitton, D., Wong, V., Elshaer, A., Cowen, M., Menon, V., Tan, L.C., McLaughlin, E., Koshy, R., Sharp, C., Brewer, H., Das, N., Cox, M., Al Khyatt, W., Worku, D., Iqbal, R., Walls, L., McGregor, R., Fullarton, G., Macdonald, A., MacKay, C., Craig, C., Dwerryhouse, S., Hornby, S., Jaunoo, S., Wadley, M., Baker, C., Saad, M., Kelly, M., Davies, A., Di Maggio, F., Mistry, P., Singhal, R., Tucker, O., Kapoulas, S., Powell-Brett, S., Davis, P., Bromley, G., Watson, L., Verma, R., Ward, J., Shetty, V., Ball, C., Pursnani, K., Sarela, A., Sue Ling, H., Mehta, S., Hayden, J., To, N., Palser, T., Hunter, D., Supramaniam, K., Butt, Z., Ahmed, A., Kumar, S., Chaudry, A., Moussa, O., Kordzadeh, A., Lorenzi, B., Wilson, M., Patil, P., Noaman, I., Willem, J., Bouras, G., Evans, R., Singh, M., Warrilow, H., Ahmad, A., Tewari, N., Yanni, F., Couch, J., Theophilidou, E., Reilly, J.J., van Boxel, Gijs, Akbari, K., Zanotti, D., Sgromo, B., Sanders, G., Wheatley, T., Ariyarathenam, A., Reece-Smith, A., Humphreys, L., Choh, C., Carter, N., Knight, B., Pucher, P., Athanasiou, A., Tan, B., Abdulrahman, M., Vickers, J., Akhtar, K., Chaparala, R., Brown, R., Alasmar, M.M.A., Ackroyd, R., Patel, K., Tamhankar, A., Wyman, A., Walker, R., Grace, B., Abbassi, N., Slim, N., Ioannidi, L., Blackshaw, G., Havard, T., Escofet, X., Powell, A., Owera, A., Rashid, F., Jambulingam, P., Padickakudi, J., Ben-Younes, H., Mccormack, K., Makey, I.A., Karush, M.K., Seder, C.W., Liptay, M.J., Chmielewski, G., Rosato, E.L., Berger, A.C., Zheng, R., Okolo, E., Singh, A., Scott, C.D., Weyant, M.J., Mitchell, J.D., and Griffiths, Ewen A.

Published
2024
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9. Real-world safety and effectiveness analysis of low-dose preschool sesame oral immunotherapy

Author

Gilbert T. Chua, MBBS, Lianne Soller, PhD, Sandeep Kapur, MD, Mary McHenry, MD, Gregory A. Rex, MD, Victoria E. Cook, MSc, MD, Scott B. Cameron, MD, PhD, Edmond S. Chan, MD, Joanne Yeung, MD, and Stephanie C. Erdle, MD

Subjects
Sesame, oral immunotherapy, low dose, preschoolers, allergy, Immunologic diseases. Allergy, RC581-607
Abstract

Background: Previous studies support the effectiveness of sesame oral immunotherapy (S-OIT) in patients >4 years old using maintenance doses of 1200 mg protein. However, tahini is often not palatable to children, and high-maintenance doses may not be possible for preschoolers. Objective: We studied the safety and effectiveness outcomes of preschoolers with sesame allergy who underwent low-dose S-OIT of 200 mg protein. Methods: Preschoolers with sesame allergy, with a history of objective reaction to sesame, and with either a positive skin prick test result (wheal diameter ≥3 mm) or sesame-specific IgE level ≥0.35 kU/L were included. Doses were escalated every 2 to 4 weeks until the maintenance dose of 200 mg of sesame protein was reached. The maintenance dose was continued daily for 1 year, followed by exit oral food challenge (OFC). Primary safety outcomes included allergic reactions grade 2 or higher and the need for epinephrine therapy during buildup. The primary effectiveness outcome was proportion of patients tolerating a minimum of 2000 mg sesame protein at exit OFC. Results: Twenty-eight preschoolers (median age, 33.5 months) were enrolled to receive S-OIT. During the buildup phase, 9 subjects (32.1%) had no reaction, and 8 (28.6%) and 11 (39.3%) had grade 1 and 2 reactions, respectively. One patient (3.57%) received epinephrine for a grade 2 reaction. Twenty-one (91.3%) of 23 eligible subjects underwent exit OFC; 18 (85.7%) of these 21 patients successfully completed exit OFC. One (4.8%) and 2 (9.5%) subjects had grade 1 and 2 reactions, respectively, during OFC. Conclusions: A lower and age-appropriate maintenance dose is safe and effective in desensitizing preschoolers with sesame allergy.

Published
2024
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10. Comorbidity of ADHD and allergic diseases in early adolescence: The role of parental smoking at home

Author

Wong, Rosa S., Tung, Keith T. S., Leung, Hugo E., Chow, Reena, Chua, Gilbert T., Ho, Macro H. K., Tso, Winnie W. Y., Fung, Genevieve P.G., Tao, Victoria Q.C., Kwan, Mike Y.W., Lum, Terry Y.S., Wong, Ian C.K., and Ip, Patrick

Subjects
Comorbidity -- Risk factors, Parent and child -- Psychological aspects -- Health aspects, Allergic reaction -- Risk factors, Smoking -- Psychological aspects -- Health aspects, Attention-deficit hyperactivity disorder -- Risk factors, Teenagers -- Psychological aspects -- Social aspects -- Health aspects, Youth -- Psychological aspects -- Social aspects -- Health aspects, Allergy -- Risk factors, Psychology and mental health
Abstract

A growing body of research suggests an association between attention deficit hyperactivity disorder (ADHD) and allergic disorders, but little work has been done to explore the role of external factors such as parental smoking at home in the development of comorbid ADHD and allergic disorders. This study aimed to examine the association between allergic diseases and ADHD adjusted for exposure to parental smoking at home in early adolescents. We recruited 250 male (41.7%) and 350 female (58.3%) adolescents (mean [SD] age, 13.29 [0.52] years) via chain-referral sampling. Their ADHD symptoms were assessed by the parent proxy-report version of the Chinese Strengths and Weaknesses of Attention-Deficit/Hyperactivity-symptoms and Normal-behaviours (SWAN) rating scale. Data on the participants' history of clinician-diagnosed allergic diseases, family socio-demographics, and parental smoking habit were collected using a parent-completed questionnaire. Regression analyses were performed to examine the associations of interest. The levels of ADHD symptoms were comparable between allergic and non-allergic participants after controlling for child and family demographics and parental smoking at home. Notably, the risk of probable ADHD was particularly high in participants with food allergies (odd ratio = 4.51, p = 0.011) but not in those with allergic rhinitis after adjusting for parental smoking at home. Our findings suggest that second-hand smoke exposure at home is a potential risk factor underlying the link between ADHD and allergic diseases. Current management guidelines should emphasize the importance of early identification and cessation of tobacco smoke exposure for prevention of comorbidity of ADHD and allergic disorders. Clinical Trial Registration (if any): NA., Author(s): Rosa S. Wong [sup.1] [sup.2] [sup.3] , Keith T. S. Tung [sup.1] , Hugo E. Leung [sup.1] , Reena Chow [sup.1] , Gilbert T. Chua [sup.1] , Macro H. [...]

Published
2023
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11. Differential patterns of fish sensitization in Asian populations: Implication for precision diagnosis

Author

Christine Y.Y. Wai, Nicki Y.H. Leung, Agnes S.Y. Leung, Naoko Fusayasu, Sakura Sato, Kary J.Y. Xu, Yat Sun Yau, Jaime S. Rosa Duque, Mike Y.W. Kwan, James W.C.H. Cheng, Wai Hung Chan, Gilbert T. Chua, Qun Ui Lee, David C.K. Luk, Po Ki Ho, Joshua S.C. Wong, Ivan C.S. Lam, Gary W.K. Wong, Motohiro Ebisawa, and Ting Fan Leung

Subjects
Aldolase, Collagen, Component-resolved diagnosis, Enolase, Parvalbumin, Immunologic diseases. Allergy, RC581-607
Abstract

Background: The current diagnostics of fish allergy lack sufficient accuracy such that more reliable tests such as component-resolved diagnosis (CRD) are urgently needed. This study aimed at identifying fish allergens of salmon and grass carp and evaluating the sensitization pattern in fish allergic subjects from two distinct populations in Asia. Methods: One hundred and three fish allergic subjects were recruited from Hong Kong (67 subjects) and Japan (46 subjects). Western blot and mass spectrometry were used to identify allergens from salmon and grass carp. Fish allergens were purified and tested against 96 sera on ELISA to analyze patients’ sensitization pattern. The protein profiles of salmon meat prepared under different cooking methods until core temperature reached 80 °C were evaluated by SDS-PAGE and mass spectrometry. Results: Three common allergens between salmon and grass carp, namely enolase, glycerldehyde-3-phosphate dehydrogenase (GAPDH) and parvalbumin, and two salmon-specific allergens collagen and aldolase were identified. Parvalbumin was the major allergen for both fishes showing an overall sensitization rate of 74.7%, followed by collagen (38.9%), aldolase (38.5%) and enolase (17.8%). Japanese subjects showed more diverse allergen sensitization pattern and more frequent IgE-binding to heat-labile salmon allergens. Compared with steaming and boiling, cooking by baking and frying retained more fish proteins inclusive of heat-labile allergens. Conclusions: Fish allergic patients from different Asian populations show varying fish allergen sensitization profiles. The relevant extracts and components for diagnosis are population-dependent but parvalbumin and collagen are important biomarkers. Cooking methods modify allergen composition of salmon and appear to influence patients’ allergic manifestations.

Published
2023
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12. Real-World Sensitization and Tolerance Pattern to Seafood in Fish-Allergic Individuals

Author

Leung, Agnes S.Y., Wai, Christine Y.Y., Leung, Nicki Y.H., Ngai, Noelle Anne, Chua, Gilbert T., Ho, Po Ki, Lam, Ivan C.S., Cheng, James W.C.H., Chan, Oi Man, Li, Pui Fung, Au, Ann W.S., Leung, Chloris H.W., Cheng, Nam Sze, Tang, Man Fung, Fong, Brian L.Y., Rosa Duque, Jaime S., Wong, Joshua S.C., Luk, David C.K., Ho, Marco H.K., Kwan, Mike Y.W., Yau, Yat Sun, Lee, Qun Ui, Chan, Wai Hung, Wong, Gary W.K., and Leung, Ting Fan

Published
2024
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13. Differential patterns of fish sensitization in Asian populations: Implication for precision diagnosis

Author

Wai, Christine Y.Y., Leung, Nicki Y.H., Leung, Agnes S.Y., Fusayasu, Naoko, Sato, Sakura, Xu, Kary J.Y., Yau, Yat Sun, Rosa Duque, Jaime S., Kwan, Mike Y.W., Cheng, James W.C.H., Chan, Wai Hung, Chua, Gilbert T., Lee, Qun Ui, Luk, David C.K., Ho, Po Ki, Wong, Joshua S.C., Lam, Ivan C.S., Wong, Gary W.K., Ebisawa, Motohiro, and Leung, Ting Fan

Published
2023
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16. Severity of SARS-CoV-2 Omicron BA.2 infection in unvaccinated hospitalized children: comparison to influenza and parainfluenza infections

Author

Winnie W.Y. Tso, Mike Y.W. Kwan, Yu Liang Wang, Lok Kan Leung, Daniel Leung, Gilbert T. Chua, Patrick Ip, Daniel Y.T. Fong, Wilfred H.S. Wong, Sophelia H.S. Chan, Jasper F.W. Chan, Malik Peiris, Yu Lung Lau, and Jaime S. Rosa Duque

Subjects
Covid-19, omicron, neurological, respiratory, children, Infectious and parasitic diseases, RC109-216, Microbiology, QR1-502
Abstract

There has been a rapid surge of hospitalization due to the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) Omicron variants globally. The severity of Omicron BA.2 in unexposed, unvaccinated, hospitalized children is unknown. We investigated the severity and clinical outcomes of COVID-19 infection during the Omicron wave in uninfected, unvaccinated hospitalized children and in comparison with influenza and parainfluenza viral infections. This population-based study retrieved data from the HK territory-wide CDARS database of hospitalisations in all public hospitals and compared severe outcomes for the Omicron BA.2-dominant fifth wave (5–28 February 2022, n = 1144), and influenza and parainfluenza viruses (1 January 2015–31 December 2019, n = 32212 and n = 16423, respectively) in children 0–11 years old. Two deaths (0.2%) out of 1144 cases during the initial Omicron wave were recorded. Twenty-one (1.8%) required PICU admission, and the relative risk was higher for Omicron than influenza virus (n = 254, 0.8%, adjusted RR = 2.1, 95%CI 1.3–3.3, p = 0.001). The proportion with neurological complications was 15.0% (n = 171) for Omicron, which was higher than influenza and parainfluenza viruses (n = 2707, 8.4%, adjusted RR = 1.6, 95%CI 1.4–1.9 and n = 1258, 7.7%, adjusted RR = 1.9, 95%CI 1.6–2.2, p

Published
2022
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17. Medium-term outcomes of myocarditis and pericarditis following BNT162b2 vaccination among adolescents in Hong Kong

Author

Gilbert T. Chua, Sabrina Tsao, Mike Yat Wah Kwan, Tak Ching Yu, Agnes Sze Yin Leung, Ka Wah Li, Calvin Chit Kwong Chow, Wai Hung Ku, Janette Kwok, Kelvin K. W. To, Yu Lung Lau, Francisco Tsz Tsun Lai, Ian Chi Kei Wong, and Patrick Ip

Subjects
Adolescents, BNT162b2, COVID-19, medium-term, myocarditis, Infectious and parasitic diseases, RC109-216, Microbiology, QR1-502
Abstract

In this study, we examined the clinical and electrophysiological outcomes of adolescents in Hong Kong who developed myocarditis or pericarditis following BNT162b2 vaccination for COVID-19, and followed-up for 60–180 days after their initial diagnosis. Clinical assessments included electrocardiogram (ECG) and echocardiogram at the initial admission and follow-up were compared. Treadmill testing was also performed in some cases. Between 14 June 2021 and 16 February 2022, 53 subjects were approached to participate in this follow-up study, of which 28 patients were followed up for >60 days with a median follow-up period of 100 days (range, 61–178 days) and were included in this study. On admission, 23 patients had ECG abnormalities but no high-grade atrioventricular block. Six patients had echocardiogram abnormalities, including reduced contractility, small rim pericardial effusions, and hyperechoic ventricular walls. All patients achieved complete recovery on follow-up. After discharge, 10 patients (35.7%) reported symptoms, including occasional chest pain, shortness of breath, reduced exercise tolerance, and recurrent vasovagal near-syncope. At follow-up, assessments, including ECGs, were almost all normal. Among the three patients with possible ECG abnormalities, all their echocardiograms or treadmill testings were normal. Sixteen patients (57.1%) underwent treadmill testing at a median of 117 days post-admission, which were also normal. However, at follow-up, there was a significant mean bodyweight increase of 1.81 kg (95%CI 0.47-3.1 kg, p = 0.01), possibly due to exercise restriction. In conclusion, most adolescents experiencing myocarditis and pericarditis following BNT162b2 vaccination achieved complete recovery. Some patients developed non-specific persistent symptoms, and bodyweight changes shall be monitored.

Published
2022
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18. Omicron variant susceptibility to neutralizing antibodies induced in children by natural SARS-CoV-2 infection or COVID-19 vaccine

Author

Lin-Lei Chen, Gilbert T. Chua, Lu Lu, Brian Pui-Chun Chan, Joshua Sung-Chih Wong, Calvin Chit-Kwong Chow, Tak-Ching Yu, Agnes Sze-Yin Leung, Shu-Yan Lam, Tak-Wai Wong, Hing-Wai Tsang, Ian Chi-Kei Wong, Kwok-Hung Chan, Kwok-Yung Yuen, Patrick Ip, Mike Yat-Wah Kwan, and Kelvin Kai-Wang To

Subjects
sars-cov-2, variant of concern, omicron variant, covid-19 vaccine, neutralizing antibody, Infectious and parasitic diseases, RC109-216, Microbiology, QR1-502
Abstract

The novel SARS-CoV-2 Omicron variant may increase the risk of re-infection and vaccine breakthrough infections as it possesses key mutations in the spike protein that affect neutralizing antibody response. Most studies on neutralization susceptibility were conducted using specimens from adult COVID-19 patients or vaccine recipients. However, since the paediatric population has an antibody response to SARS-CoV-2 infection that is distinct from the adult population, it is critical to assess the neutralization susceptibility of pediatric serum specimens. This study compared the neutralization susceptibility of serum specimens collected from 49 individuals of

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2022
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19. Adverse events of special interest following the use of BNT162b2 in adolescents: a population-based retrospective cohort study

Author

Francisco Tsz Tsun Lai, Gilbert T. Chua, Edward Wai Wa Chan, Lei Huang, Mike Yat Wah Kwan, Tiantian Ma, Xiwen Qin, Celine Sze Ling Chui, Xue Li, Eric Yuk Fai Wan, Carlos King Ho Wong, Esther Wai Yin Chan, Ian Chi Kei Wong, and Patrick Ip

Subjects
Chinese, coronavirus, immunization, reactogenicity, SARS-CoV-2, Infectious and parasitic diseases, RC109-216, Microbiology, QR1-502
Abstract

Accruing evidence suggests an increased risk of myocarditis in adolescents from messenger RNA COVID-19 vaccines. However, other potential adverse events remain under-researched. We conducted a retrospective cohort study of adolescents aged 12–18 with a territory-wide electronic healthcare database of the Hong Kong population linked with population-based vaccination records and supplemented with age- and sex-specific population numbers. Two age- and sex-matched retrospective cohorts were formed to observe 28 days following the first and second doses of BNT162b2 and estimate the age- and sex-adjusted incidence rate ratios between the vaccinated and unvaccinated. Thirty AESIs adapted from the World Health Organization’s Global Advisory Committee on Vaccine Safety were examined. Eventually, the first-dose cohort comprised 274,881 adolescents (50.25% received the first dose) and the second-dose cohort 237,964 (50.29% received the second dose). Ninety-four (34.2 per 100,000 persons) adolescents in the first-dose cohort and 130 (54.6 per 100,000 persons) in the second-dose cohort experienced ≥1 AESIs. There were no statistically significant differences in the risk of any AESI associated with BNT162b2 except myocarditis [first-dose cohort: incidence rate ratio (IRR) = 9.15, 95% confidence interval (CI) 1.14–73.16; second-dose cohort: IRR = 29.61, 95% CI 4.04–217.07] and sleeping disturbances/disorders after the second dose (IRR = 2.06, 95% CI 1.01–4.24). Sensitivity analysis showed that, with myocarditis excluded as AESIs, no significantly elevated risk of AESIs as a composite outcome associated with vaccination was observed (P = 0.195). To conclude, the overall absolute risk of AESIs was low with no evidence of an increased risk of AESIs except myocarditis and sleeping disturbances/disorders.

Published
2022
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20. Evidence of individual differences in the long-term social, psychological, and cognitive consequences of child maltreatment

Author

Rosa S. Wong, Keith T. S. Tung, Ko Ling Chan, Wilfred H. S. Wong, Hing Wai Tsang, Clare H. Y. Chow, Gilbert T. Chua, Winnie W. Y. Tso, Jason C. Yam, Ian C. K. Wong, and Patrick lp

Subjects
Child maltreatment, Cytokine, Inflammation, Family support, Stress, Adulthood, Pediatrics, RJ1-570, Psychiatry, RC435-571
Abstract

Abstract Background The prevalence and consequences of child maltreatment are alarming, but evidence from studies with long follow-up intervals are limited. This study examined the long-term consequences of child maltreatment in relation to age of onset and follow-up interval. Methods The exposed group comprised 63 individuals (aged 13–34 years) with a first-time diagnosis of child maltreatment between 2001 and 2010, whereas the unexposed group comprised 63 individuals who were matched upon gender, age of onset, follow-up period, and poverty status at the index hospital admission but had no medical records of maltreatment in Hong Kong. The participants completed a set of questionnaires on executive functions and mental health and provided blood samples for measurement of IL-6 and IL-10 levels during a health assessment session. Results Compared with the unexposed group, the exposed group reported poorer maternal care during childhood (β = −4.64, p

Published
2022
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25. Immunogenicity and reactogenicity of SARS-CoV-2 vaccines BNT162b2 and CoronaVac in healthy adolescents

Author

Jaime S. Rosa Duque, Xiwei Wang, Daniel Leung, Samuel M. S. Cheng, Carolyn A. Cohen, Xiaofeng Mu, Asmaa Hachim, Yanmei Zhang, Sau Man Chan, Sara Chaothai, Kelvin K. H. Kwan, Karl C. K. Chan, John K. C. Li, Leo L. H. Luk, Leo C. H. Tsang, Wilfred H. S. Wong, Cheuk Hei Cheang, Timothy K. Hung, Jennifer H. Y. Lam, Gilbert T. Chua, Winnie W. Y. Tso, Patrick Ip, Masashi Mori, Niloufar Kavian, Wing Hang Leung, Sophie Valkenburg, Malik Peiris, Wenwei Tu, and Yu Lung Lau

Subjects
Science
Abstract

There are adverse events associated with COVID-19 vaccines, such as myocarditis for adolescents following receipt of SARS-CoV-2 mRNA vaccines. Here the authors compare the immunogenicity and reactogenicity of two widely available SARS-CoV-2 vaccines (BNT162b2, an mRNA vaccine, and CoronaVac, a whole-virus inactivated vaccine) in healthy adolescents.

Published
2022
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26. Associations between childhood maltreatment and psychiatric disorders: analysis from electronic health records in Hong Kong

Author

Rosa S. Wong, Keith T. S. Tung, Frederick K. W. Ho, Tatia M. C. Lee, Ko Ling Chan, John Bacon-Shone, David Coghill, Kenneth K. C. Man, Pak C. Sham, Wilfred H. S. Wong, Winnie W. Y. Tso, Gilbert T. Chua, Ian C. K. Wong, and Patrick Ip

Subjects
Neurosciences. Biological psychiatry. Neuropsychiatry, RC321-571
Abstract

Abstract There has been a lack of high-quality evidence concerning the association between childhood maltreatment and psychiatric diagnoses particularly for Axis II disorders. This study aimed to examine the association between childhood maltreatment exposure and Axis I and Axis II psychiatry disorders using electronic health records. In this study, the exposed group (n = 7473) comprised patients aged 0 to 19 years with a first-time record of maltreatment episode between January 1, 2001 and December 31, 2010, whereas the unexposed group (n = 26,834) comprised individuals of the same gender and age who were admitted into the same hospital in the same calendar year and month but had no records of maltreatment in the Hong Kong Clinical Data Analysis and Reporting System (CDARS). Data on their psychiatric diagnoses recorded from the date of admission to January 31, 2019 were extracted. A Cox proportional hazard regression model was fitted to estimate the hazard ratio (HR, plus 95% CIs) between childhood maltreatment exposure and psychiatric diagnoses, adjusting for age at index visit, sex, and government welfare recipient status. Results showed that childhood maltreatment exposure was significantly associated with subsequent diagnosis of conduct disorder/ oppositional defiant disorder (adjusted HR, 10.99 [95% CI 6.36, 19.01]), attention deficit hyperactivity disorder (ADHD) (7.28 [5.49, 9.65]), and personality disorders (5.36 [3.78, 7.59]). The risk of psychiatric disorders following childhood maltreatment did not vary by history of childhood sexual abuse, age at maltreatment exposure, and gender. Individuals with a history of childhood maltreatment are vulnerable to psychiatric disorders. Findings support the provision of integrated care within the primary health care setting to address the long-term medical and psychosocial needs of individuals with a history of childhood maltreatment.

Published
2022
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27. Patient selection for milk and egg ladders using a food ladder safety checklist

Author

Gilbert T. Chua, Edmond S. Chan, Joanne Yeung, Scott B. Cameron, Lianne Soller, Brock A. Williams, Alanna Chomyn, Timothy K. Vander Leek, Elissa M. Abrams, Raymond Mak, and Tiffany Wong

Subjects
Food ladders, Milk allergy, Egg allergy, Safety, Immunologic diseases. Allergy, RC581-607
Abstract

Abstract A food ladder is a form of home-based dietary advancement therapy that gradually increases exposure to an allergenic food through the gradual introduction of egg or milk containing food with increasing quantity and allergenicity from extensively heated forms, such as baked goods, to less processed products. While widely considered safe, the food ladder is not risk-free and most of the egg and milk ladder studies only included preschoolers with mild egg and milk allergies, and with no or well-controlled asthma. We propose a Food Ladder Safety Checklist to assist with patient selection using “4 A's” based on available evidence for food ladders, including Age, active or poorly controlled Asthma, history of Anaphylaxis, and Adherence.

Published
2022
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28. The influence of anastomotic techniques on postoperative anastomotic complications: Results of the Oesophago-Gastric Anastomosis Audit

Author

Kamarajah, S.K., Evans, R.P.T., Nepogodiev, D., Hodson, J., Bundred, J.R., Gockel, I., Gossage, J.A., Isik, A., Kidane, B., Mahendran, H.A., Negoi, I., Okonta, K.E., Sayyed, R., van Hillegersberg, R., Vohra, R.S., Wijnhoven, B.P.L., Singh, P., Griffiths, E.A., Alderson, D., Bundred, J., Gossage, J., Jefferies, B., McKay, S., Mohamed, I., Siaw-Acheampong, K., Vohra, R., Wanigasooriya, K., Whitehouse, T., Gjata, A., Moreno, J.I., Takeda, F.R., Guevara Castro, R., Harustiak, T., Bekele, A., Kechagias, A., Kennedy, A., Da Roit, A., Bagajevas, A., Azagra, J.S., Mejía-Fernández, L., El Kafsi, J., Sayyed, R.H., Sousa, M., Sampaio, A.S., Blanco, R., Wallner, B., Schneider, P.M., Hsu, P.K., Gananadha, S., Wills, V., Devadas, M., Duong, C., Talbot, M., Hii, M.W., Jacobs, R., Andreollo, N.A., Johnston, B., Darling, G., Isaza-Restrepo, A., Rosero, G., Arias-Amézquita, F., Raptis, D., Gaedcke, J., Reim, D., Izbicki, J., Egberts, J.H., Dikinis, S., Kjaer, D.W., Larsen, M.H., Achiam, M.P., Saarnio, J., Theodorou, D., Liakakos, T., Korkolis, D.P., Robb, W.B., Collins, C., Murphy, T., Reynolds, J., Tonini, V., Migliore, M., Bonavina, L., Valmasoni, M., Bardini, R., Weindelmayer, J., Terashima, M., White, R.E., Alghunaim, E., Elhadi, M., Leon-Takahashi, A.M., Medina-Franco, H., Lau, P.C., Heisterkamp, J., Rosman, C., Beban, G., Babor, R., Gordon, A., Rossaak, J.I., Pal, K.M.I., Qureshi, A.U., Naqi, S.A., Syed, A.A., Barbosa, J., Vicente, C.S., Leite, J., Freire, J., Casaca, R., Costa, R.C.T., Scurtu, R.R., Mogoanta, S.S., Bolca, C., Constantinoiu, S., Sekhniaidze, D., Bjelović, M., So, J.B.Y., Gačevski, G., Loureiro, C., Pera, M., Bianchi, A., Moreno Gijón, M., Martín Fernández, J., Trugeda Carrera, M.S., Vallve-Bernal, M., Cítores Pascual, M.A., Elmahi, S., Halldestam, I., Hedberg, J., Mönig, S., Gutknecht, S., Tez, M., Guner, A., Tirnaksiz, M.B., Colak, E., Sevinç, B., Hindmarsh, A., Khan, I., Khoo, D., Byrom, R., Gokhale, J., Wilkerson, P., Jain, P., Chan, D., Robertson, K., Iftikhar, S., Skipworth, R., Forshaw, M., Higgs, S., Nijjar, R., Viswanath, Y.K.S., Turner, P., Dexter, S., Boddy, A., Allum, W.H., Oglesby, S., Cheong, E., Beardsmore, D., Maynard, N., Berrisford, R., Mercer, S., Puig, S., Melhado, R., Kelty, C., Underwood, T., Dawas, K., Lewis, W., Al-Bahrani, A., Bryce, G., Thomas, M., Arndt, A.T., Palazzo, F., Meguid, R.A., Fergusson, J., Beenen, E., Mosse, C., Salim, J., Cheah, S., Wright, T., Cerdeira, M.P., McQuillan, P., Richardson, M., Liem, H., Spillane, J., Yacob, M., Albadawi, F., Thorpe, T., Dingle, A., Cabalag, C., Loi, K., Fisher, O.M., Ward, S., Read, M., Johnson, M., Bassari, R., Bui, H., Cecconello, I., Sallum, R.A.A., da Rocha, J.R.M., Lopes, L.R., Tercioti, V., Jr, Coelho, J.D.S., Ferrer, J.A.P., Buduhan, G., Tan, L., Srinathan, S., Shea, P., Yeung, J., Allison, F., Carroll, P., Vargas-Barato, F., Gonzalez, F., Ortega, J., Nino-Torres, L., Beltrán-García, T.C., Castilla, L., Pineda, M., Bastidas, A., Gómez-Mayorga, J., Cortés, N., Cetares, C., Caceres, S., Duarte, S., Pazdro, A., Snajdauf, M., Faltova, H., Sevcikova, M., Mortensen, P.B., Katballe, N., Ingemann, T., Morten, B., Kruhlikava, I., Ainswort, A.P., Stilling, N.M., Eckardt, J., Holm, J., Thorsteinsson, M., Siemsen, M., Brandt, B., Nega, B., Teferra, E., Tizazu, A., Kauppila, J.H., Koivukangas, V., Meriläinen, S., Gruetzmann, R., Krautz, C., Weber, G., Golcher, H., Emons, G., Azizian, A., Ebeling, M., Niebisch, S., Kreuser, N., Albanese, G., Hesse, J., Volovnik, L., Boecher, U., Reeh, M., Triantafyllou, S., Schizas, D., Michalinos, A., Balli, E., Mpoura, M., Charalabopoulos, A., Manatakis, D.K., Balalis, D., Bolger, J., Baban, C., Mastrosimone, A., McAnena, O., Quinn, A., Ó Súilleabháin, C.B., Hennessy, M.M., Ivanovski, I., Khizer, H., Ravi, N., Donlon, N., Cervellera, M., Vaccari, S., Bianchini, S., Sartarelli, l., Asti, E., Bernardi, D., Merigliano, S., Provenzano, L., Scarpa, M., Saadeh, L., Salmaso, B., De Manzoni, G., Giacopuzzi, S., La Mendola, R., De Pasqual, C.A., Tsubosa, Y., Niihara, M., Irino, T., Makuuchi, R., Ishii, K., Mwachiro, M., Fekadu, A., Odera, A., Mwachiro, E., AlShehab, D., Ahmed, H.A., Shebani, A.O., Elhadi, A., Elnagar, F.A., Elnagar, H.F., Makkai-Popa, S.T., Wong, L.F., Tan, Y.R., Thannimalai, S., Ho, C.A., Pang, W.S., Tan, J.H., Basave, H.N.L., Cortés-González, R., Lagarde, S.M., van Lanschot, J.J.B., Cords, C., Jansen, W.A., Martijnse, I., Matthijsen, R., Bouwense, S., Klarenbeek, B., Verstegen, M., van Workum, F., Ruurda, J.P., van der Sluis, P.C., de Maat, M., Evenett, N., Johnston, P., Patel, R., MacCormick, A., Young, M., Smith, B., Ekwunife, C., Memon, A.H., Shaikh, K., Wajid, A., Khalil, N., Haris, M., Mirza, Z.U., Qudus, S.B.A., Sarwar, M.Z., Shehzadi, A., Raza, A., Jhanzaib, M.H., Farmanali, J., Zakir, Z., Shakeel, O., Nasir, I., Khattak, S., Baig, M., MA, Noor, Ahmed, H.H., Naeem, A., Pinho, A.C., da Silva, R., Bernardes, A., Campos, J.C., Matos, H., Braga, T., Monteiro, C., Ramos, P., Cabral, F., Gomes, M.P., Martins, P.C., Correia, A.M., Videira, J.F., Ciuce, C., Drasovean, R., Apostu, R., Paitici, S., Racu, A.E., Obleaga, C.V., Beuran, M., Stoica, B., Ciubotaru, C., Negoita, V., Cordos, I., Birla, R.D., Predescu, D., Hoara, P.A., Tomsa, R., Shneider, V., Agasiev, M., Ganjara, I., Gunjić, D., Veselinović, M., Babič, T., Chin, T.S., Shabbir, A., Kim, G., Crnjac, A., Samo, H., Díez del Val, I., Leturio, S., Ramón, J.M., Dal Cero, M., Rifá, S., Rico, M., Pagan Pomar, A., Martinez Corcoles, J.A., Rodicio Miravalles, J.L., Pais, S.A., Turienzo, S.A., Alvarez, L.S., Campos, P.V., Rendo, A.G., García, S.S., Santos, E.P.G., Martínez, E.T., Fernández Díaz, M.J., Magadán Álvarez, C., Concepción Martín, V., Díaz López, C., Rosat Rodrigo, A., Pérez Sánchez, L.E., Bailón Cuadrado, M., Tinoco Carrasco, C., Choolani Bhojwani, E., Sánchez, D.P., Ahmed, M.E., Dzhendov, T., Lindberg, F., Rutegård, M., Sundbom, M., Mickael, C., Colucci, N., Schnider, A., Er, S., Kurnaz, E., Turkyilmaz, S., Turkyilmaz, A., Yildirim, R., Baki, B.E., Akkapulu, N., Karahan, O., Damburaci, N., Hardwick, R., Safranek, P., Sujendran, V., Bennett, J., Afzal, Z., Shrotri, M., Chan, B., Exarchou, K., Gilbert, T., Amalesh, T., Mukherjee, D., Mukherjee, S., Wiggins, T.H., Kennedy, R., McCain, S., Harris, A., Dobson, G., Davies, N., Wilson, I., Mayo, D., Bennett, D., Young, R., Manby, P., Blencowe, N., Schiller, M., Byrne, B., Mitton, D., Wong, V., Elshaer, A., Cowen, M., Menon, V., Tan, L.C., McLaughlin, E., Koshy, R., Sharp, C., Brewer, H., Das, N., Cox, M., Al Khyatt, W., Worku, D., Iqbal, R., Walls, L., McGregor, R., Fullarton, G., Macdonald, A., MacKay, C., Craig, C., Dwerryhouse, S., Hornby, S., Jaunoo, S., Wadley, M., Baker, C., Saad, M., Kelly, M., Davies, A., Di Maggio, F., Mistry, P., Singhal, R., Tucker, O., Kapoulas, S., Powell-Brett, S., Davis, P., Bromley, G., Watson, L., Verma, R., Ward, J., Shetty, V., Ball, C., Pursnani, K., Sarela, A., Sue Ling, H., Mehta, S., Hayden, J., To, N., Palser, T., Hunter, D., Supramaniam, K., Butt, Z., Ahmed, A., Kumar, S., Chaudry, A., Moussa, O., Kordzadeh, A., Lorenzi, B., Wilson, M., Patil, P., Noaman, I., Willem, J., Bouras, G., Evans, R., Singh, M., Warrilow, H., Ahmad, A., Tewari, N., Yanni, F., Couch, J., Theophilidou, E., Reilly, J.J., van Boxel Gijs, Akbari, K., Zanotti, D., Sgromo, B., Sanders, G., Wheatley, T., Ariyarathenam, A., Reece-Smith, A., Humphreys, L., Choh, C., Carter, N., Knight, B., Pucher, P., Athanasiou, A., Tan, B., Abdulrahman, M., Vickers, J., Akhtar, K., Chaparala, R., Brown, R., Alasmar, M.M.A., Ackroyd, R., Patel, K., Tamhankar, A., Wyman, A., Walker, R., Grace, B., Abbassi, N., Slim, N., Ioannidi, L., Blackshaw, G., Havard, T., Escofet, X., Powell, A., Owera, A., Rashid, F., Jambulingam, P., Padickakudi, J., Ben-Younes, H., Mccormack, K., Makey, I.A., Karush, M.K., Seder, C.W., Liptay, M.J., Chmielewski, G., Rosato, E.L., Berger, A.C., Zheng, R., Okolo, E., Singh, A., Scott, C.D., Weyant, M.J., and Mitchell, J.D.

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2022
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29. Mental health & maltreatment risk of children with special educational needs during COVID-19

Author

Tso, Winnie W.Y., Chan, Ko Ling, Lee, Tatia M.C., Rao, Nirmala, Lee, S.L., Jiang, Fan, Chan, Sophelia H.S., Wong, Wilfred H.S., Wong, Rosa S., Tung, Keith T.S., Yam, Jason C., Liu, Anthony P.Y., Chua, Gilbert T., Rosa Duque, Jaime S., Lam, Almen L.N., Yip, K.M., Leung, L.K., Wang, Yuliang, Sun, Jin, Wang, Guanghai, Chan, Godfrey C.F., Wong, Ian C.K., and Ip, Patrick

Published
2022
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30. Postoperative and Pathological Outcomes of CROSS and FLOT as Neoadjuvant Therapy for Esophageal and Junctional Adenocarcinoma: An International Cohort Study From the Oesophagogastric Anastomosis Audit (OGAA)

Author

Steering Committee, Alderson, D, Bundred, J, RPT, Evans, Gossage, J, Griffiths, EA, Jefferies, B, Kamarajah, SK, McKay, S, Mohamed, I, Nepogodiev, D, Siaw- Acheampong, K, Singh, P, van Hillegersberg, R, Vohra, R, Wanigasooriya, K, Whitehouse, T., National Leads, Gjata, A, Moreno, JI, Takeda, FR, Kidane, B, Guevara Castro, R, Harustiak, T, Bekele, A, Kechagias, A, Gockel, I, Kennedy, A, Da Roit, A, Bagajevas, A, Azagra, JS, Mahendran, HA, Mejía-Fernández, L, Wijnhoven, BPL, El Kafsi, J, Sayyed, RH, Sousa, M, Sampaio, AS, Negoi, I, Blanco, R, Wallner, B, Schneider, PM, Hsu, PK, Isik, A, Site Leads, Gananadha, S, Wills, V, Devadas, M, Duong, C, Talbot, M, Hii, MW, Jacobs, R, Andreollo, NA, Johnston, B, Darling, G, Isaza-Restrepo, A, Rosero, G, Arias- Amézquita, F, Raptis, D, Gaedcke, J, Reim, D, Izbicki, J, Egberts, JH, Dikinis, S, Kjaer, DW, Larsen, MH, Achiam, MP, Saarnio, J, Theodorou, D, Liakakos, T, Korkolis, DP, Robb, WB, Collins, C, Murphy, T, Reynolds, J, Tonini, V, Migliore, M, Bonavina, L, Valmasoni, M, Bardini, R, Weindelmayer, J, Terashima, M, White, RE, Alghunaim, E, Elhadi, M, Leon-Takahashi, AM, Medina-Franco, H, Lau, PC, Okonta, KE, Heisterkamp, J, Rosman, C, van Hillegersberg, R, Beban, G, Babor, R, Gordon, A, Rossaak, JI, Pal, KMI, Qureshi, AU, Naqi, SA, Syed, AA, Barbosa, J, Vicente, CS, Leite, J, Freire, J, Casaca, R, Costa, RCT, Scurtu, RR, Mogoanta, SS, Bolca, C, Constantinoiu, S, Sekhniaidze, D, Bjelović, M, So, JBY, Gačevski, G, Loureiro, C, Pera, M, Bianchi, A, Moreno Gijón, M, Martín Fernández, J, Trugeda Carrera, MS, Vallve-Bernal, M, Cítores Pascual, MA, Elmahi, S, Halldestam, I, Hedberg, J, Mönig, S, Gutknecht, S, Tez, M, Guner, A, Tirnaksiz, MB, Colak, E, Sevinç, B, Hindmarsh, A, Khan, I, Khoo, D, Byrom, R, Gokhale, J, Wilkerson, P, Jain, P, Chan, D, Robertson, K, Iftikhar, S, Skipworth, R, Forshaw, M, Higgs, S, Gossage, J, Nijjar, R, Viswanath, YKS, Turner, P, Dexter, S, Boddy, A, Allum, WH, Oglesby, S, Cheong, E, Beardsmore, D, Vohra, R, Maynard, N, Berrisford, R, Mercer, S, Puig, S, Melhado, R, Kelty, C, Underwood, T, Dawas, K, Lewis, W, Al-Bahrani, A, Bryce, G, Thomas, M, Arndt, AT, Palazzo, F, Meguid, RA, Collaborators, Fergusson, J, Beenen, E, Mosse, C, Salim, J, Cheah, S, Wright, T, Cerdeira, MP, McQuillan, P, Richardson, M, Liem, H, Spillane, J, Yacob, M, Albadawi, F, Thorpe, T, Dingle, A, Cabalag, C, Loi, K, Fisher, OM, Ward, S, Read, M, Johnson, M, Bassari, R, Bui, H, Cecconello, I, RAA, Sallum, da Rocha, JRM, Lopes, LR, Tercioti, V, Jr, JDS, Coelho, Ferrer, JAP, Buduhan, G, Tan, L, Srinathan, S, Shea, P, Yeung, J, Allison, F, Carroll, P, Vargas-Barato, F, Gonzalez, F, Ortega, J, Nino-Torres, L, Beltrán-García, TC, Castilla, L, Pineda, M, Bastidas, A, Gómez-Mayorga, J, Cortés, N, Cetares, C, Caceres, S, Duarte, S, Pazdro, A, Snajdauf, M, Faltova, H, Sevcikova, M, Mortensen, PB, Katballe, N, Ingemann, T, Kruhlikava, Morten B, I, Ainswort, AP, Stilling, NM, Eckardt, J, Holm, J, Thorsteinsson, M, Siemsen, M, Brandt, B, Nega, B, Teferra, E, Tizazu, A, Kauppila, JH, Koivukangas, V, Meriläinen, S, Gruetzmann, R, Krautz, C, Weber, G, Golcher, H, Emons, G, Azizian, A, Ebeling, M, Niebisch, S, Kreuser, N, Albanese, G, Hesse, J, Volovnik, L, Boecher, U, Reeh, M, Triantafyllou, S, Schizas, D, Michalinos, A, Balli, E, Mpoura, M, Charalabopoulos, A, Manatakis, DK, Balalis, D, Bolger, J, Baban, C, Mastrosimone, A, McAnena, O, Quinn, A, Ó Súilleabháin, CB, Hennessy, MM, Ivanovski, I, Khizer, H, Ravi, N, Donlon, N, Cervellera, M, Vaccari, S, Bianchini, S, Sartarelli, l, Asti, E, Bernardi, D, Merigliano, S, Provenzano, L, Scarpa, M, Saadeh, L, Salmaso, B, De Manzoni, G, Giacopuzzi, S, La Mendola, R, De Pasqual, CA, Tsubosa, Y, Niihara, M, Irino, T, Makuuchi, R, Ishii, K, Mwachiro, M, Fekadu, A, Odera, A, Mwachiro, E, AlShehab, D, Ahmed, HA, Shebani, AO, Elhadi, A, Elnagar, FA, Elnagar, HF, Makkai-Popa, ST, Wong, LF, Tan, YR, Thannimalai, S, Ho, CA, Pang, WS, Tan, JH, HNL, Basave, Cortés-González, R, Lagarde, SM, van Lanschot, JJB, Cords, C, Jansen, WA, Martijnse, I, Matthijsen, R, Bouwense, S, Klarenbeek, B, Verstegen, M, van Workum, F, Ruurda, JP, van der Sluis, PC, de Maat, M, Evenett, N, Johnston, P, Patel, R, MacCormick, A, Young, M, Smith, B, Ekwunife, C, Memon, AH, Shaikh, K, Wajid, A, Khalil, N, Haris, M, Mirza, ZU, SBA, Qudus, Sarwar, MZ, Shehzadi, A, Raza, A, Jhanzaib, MH, Farmanali, J, Zakir, Z, Shakeel, O, Nasir, I, Khattak, S, Baig, M, Noor, MA, Ahmed, HH, Naeem, A, Pinho, AC, da Silva, R, Bernardes, A, Campos, JC, Matos, H, Braga, T, Monteiro, C, Ramos, P, Cabral, F, Gomes, MP, Martins, PC, Correia, AM, Videira, JF, Ciuce, C, Drasovean, R, Apostu, R, Ciuce, C, Paitici, S, Racu, AE, Obleaga, CV, Beuran, M, Stoica, B, Negoita, Ciubotaru C, V, Cordos, I, Birla, RD, Predescu, D, Hoara, PA, Tomsa, R, Shneider, V, Agasiev, M, Ganjara, I, Gunjić, D, Veselinović, M, Babič, T, Chin, TS, Shabbir, A, Kim, G, Crnjac, A, Samo, H, Díez del Val, I, Leturio, S, Ramón, JM, Dal Cero, M, Rifá, S, Rico, M, Pagan Pomar, A, Martinez Corcoles, JA, Rodicio Miravalles, JL, Pais, SA, Turienzo, SA, Alvarez, LS, Campos, PV, Rendo, AG, García, SS, EPG, Santos, Martínez, ET, Fernández Díaz, MJ, Magadán Álvarez, C, Concepción Martín, V, Díaz López, C, Rosat Rodrigo, A, Pérez Sánchez, LE, Bailón Cuadrado, M, Tinoco Carrasco, C, Choolani Bhojwani, E, Sánchez, DP, Ahmed, ME, Dzhendov, T, Lindberg, F, Rutegård, M, Sundbom, M, Mickael, C, Colucci, N, Schnider, A, Er, S, Kurnaz, E, Turkyilmaz, S, Turkyilmaz, A, Yildirim, R, Baki, BE, Akkapulu, N, Karahan, O, Damburaci, N, Hardwick, R, Safranek, P, Sujendran, V, Bennett, J, Afzal, Z, Shrotri, M, Chan, B, Exarchou, K, Gilbert, T, Amalesh, T, Mukherjee, D, Mukherjee, S, Wiggins, TH, Kennedy, R, McCain, S, Harris, A, Dobson, G, Davies, N, Wilson, I, Mayo, D, Bennett, D, Young, R, Manby, P, Blencowe, N, Schiller, M, Byrne, B, Mitton, D, Wong, V, Elshaer, A, Cowen, M, Menon, V, Tan, LC, McLaughlin, E, Koshy, R, Sharp, C, Brewer, H, Das, N, Cox, M, Al Khyatt, W, Worku, D, Iqbal, R, Walls, L, McGregor, R, Fullarton, G, Macdonald, A, MacKay, C, Craig, C, Dwerryhouse, S, Hornby, S, Jaunoo, S, Wadley, M, Baker, C, Saad, M, Kelly, M, Davies, A, Di Maggio, F, McKay, S, Mistry, P, Singhal, R, Tucker, O, Kapoulas, S, Powell-Brett, S, Davis, P, Bromley, G, Watson, L, Verma, R, Ward, J, Shetty, V, Ball, C, Pursnani, K, Sarela, A, Sue Ling, H, Mehta, S, Hayden, J, To, N, Palser, T, Hunter, D, Supramaniam, K, Butt, Z, Ahmed, A, Kumar, S, Chaudry, A, Moussa, O, Kordzadeh, A, Lorenzi B Wilson, M, Patil, P, Noaman, I, Willem, J, Bouras, G, Evans, R, Singh, M, Warrilow, H, Ahmad, A, Tewari, N, Yanni, F, Couch, J, Theophilidou, E, Reilly, JJ, Singh, P, van Boxel, Gijs, Akbari, K, Zanotti, D, Sgromo, B, Sanders, G, Wheatley, T, Ariyarathenam, A, Reece-Smith, A, Humphreys, L, Choh, C, Carter, N, Knight, B, Pucher, P, Athanasiou, A, Mohamed, I, Tan, B, Abdulrahman, M, Vickers, J, Akhtar, K, Chaparala, R, Brown, R, Alasmar, MMA, Ackroyd, R, Patel, K, Tamhankar, A, Wyman, A, Walker, R, Grace, B, Abbassi, N, Slim, N, Ioannidi, L, Blackshaw, G, Havard, T, Escofet, X, Powell, A, Owera, A, Rashid, F, Jambulingam, P, Padickakudi, J, Ben-Younes, H, Mccormack, K, Makey, IA, Karush, MK, Seder, CW, Liptay, MJ, Chmielewski, G, Rosato, EL, Berger, AC, Zheng, R, Okolo, E, Singh, A, Scott, CD, Weyant, MJ, and Mitchell, JD.

Published
2023
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32. Vulnerability and resilience in children during the COVID-19 pandemic

Author

Tso, Winnie W. Y., Wong, Rosa S., Tung, Keith T. S., Rao, Nirmala, Fu, King Wa, Yam, Jason C. S., Chua, Gilbert T., Chen, Eric Y. H., Lee, Tatia M. C., Chan, Sherry K. W., Wong, Wilfred H. S., Xiong, Xiaoli, Chui, Celine S., Li, Xue, Wong, Kirstie, Leung, Cynthia, Tsang, Sandra K. M., Chan, Godfrey C. F., Tam, Paul K. H., Chan, Ko Ling, Kwan, Mike Y. W., Ho, Marco H. K., Chow, Chun Bong, Wong, Ian C. K., and lp, Patrick

Published
2022
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36. Author Correction: Immunogenicity and reactogenicity of SARS-CoV-2 vaccines BNT162b2 and CoronaVac in healthy adolescents

Author

Rosa Duque, Jaime S., Wang, Xiwei, Leung, Daniel, Cheng, Samuel M. S., Cohen, Carolyn A., Mu, Xiaofeng, Hachim, Asmaa, Zhang, Yanmei, Chan, Sau Man, Chaothai, Sara, Kwan, Kelvin K. H., Chan, Karl C. K., Li, John K. C., Luk, Leo L. H., Tsang, Leo C. H., Wong, Wilfred H. S., Cheang, Cheuk Hei, Hung, Timothy K., Lam, Jennifer H. Y., Chua, Gilbert T., Tso, Winnie W. Y., Ip, Patrick, Mori, Masashi, Kavian, Niloufar, Leung, Wing Hang, Valkenburg, Sophie, Peiris, Malik, Tu, Wenwei, and Lau, Yu Lung

Published
2022
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37. Immunogenicity and reactogenicity of SARS-CoV-2 vaccines BNT162b2 and CoronaVac in healthy adolescents

Author

Rosa Duque, Jaime S., Wang, Xiwei, Leung, Daniel, Cheng, Samuel M. S., Cohen, Carolyn A., Mu, Xiaofeng, Hachim, Asmaa, Zhang, Yanmei, Chan, Sau Man, Chaothai, Sara, Kwan, Kelvin K. H., Chan, Karl C. K., Li, John K. C., Luk, Leo L. H., Tsang, Leo C. H., Wong, Wilfred H. S., Cheang, Cheuk Hei, Hung, Timothy K., Lam, Jennifer H. Y., Chua, Gilbert T., Tso, Winnie W. Y., Ip, Patrick, Mori, Masashi, Kavian, Niloufar, Leung, Wing Hang, Valkenburg, Sophie, Peiris, Malik, Tu, Wenwei, and Lau, Yu Lung

Published
2022
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38. Epidemiology and Trends of Infective Meningitis in Neonates and Infants Less than 3 Months Old in Hong Kong

Author

Chi Hang Wong, Jaime Rosa Duque, Joshua Sung Chih Wong, Chi-man Victor Chan, Cheuk San Ivan Lam, Yu Ming Fu, Kai-Ning Cheong, Gilbert T. Chua, Pamela P. Lee, Patrick Ip, Marco Hok Kung Ho, Ian Chi Kei Wong, Godfrey Chi Fung Chan, Wing Hang Leung, So Lun Lee, Kwok Piu Lee, Chi Chiu Shek, Ming Sum Rosanna Wong, Mabel Siu Chun Wong, Yu-Lung Lau, and Mike Yat-wah Kwan

Subjects
Meningitis, Neonates, Infants, Bacteria, Antimicrobial resistance, Infectious and parasitic diseases, RC109-216
Abstract

Objectives: Meningitis in neonates and young infants leads to significant morbidity and mortality worldwide. This study aimed to investigate pathogens, antibiotic resistance and secular change of incidence in Hong Kong. Methods: A retrospective search was performed on meningitis in neonates and infants aged

Published
2021
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39. HLA alleles associated with asparaginase hypersensitivity in Chinese children

Author

Gilbert T. Chua, Jaime S. Rosa Duque, Daniel Ka Leung Cheuk, Alex Wing Kwan Leung, Wilfred Hing Sang Wong, Anthony Pak Yin Liu, Pamela P. W. Lee, Shau Yin Ha, Alan Kwok Shing Chiang, Marco Hok Kung Ho, Wai Keung Chu, Yuk Sing Chan, Chun Wing Luk, Alvin Siu Cheung Ling, Mike Yat Wah Kwan, Oscar Kuen Fong Yiu, Ian Chi Kei Wong, Yu Lung Lau, Chi Kong Li, Wing Hang Leung, Godfrey Chi Fung Chan, Patrick Ip, and Janette Kwok

Subjects
Human leukocyte antigens, Asparaginase, Hypersensitivity, Allergy, Chinese, Children, Diseases of the blood and blood-forming organs, RC633-647.5, Neoplasms. Tumors. Oncology. Including cancer and carcinogens, RC254-282
Abstract

Abstract Asparaginase is an important drug to treat childhood haematological malignancies. Data on the association between human leukocyte antigens (HLA) and asparaginase hypersensitivity among Chinese are lacking. We conducted a retrospective study to identify HLA alleles associated with asparaginase hypersensitivity among Chinese children with acute lymphoblastic leukaemia (ALL), mixed phenotype leukaemia and non-Hodgkin lymphoma (NHL), who received asparaginases with HLA typing performed between 2009 and 2019. 107 Chinese patients were analysed. 66.3% (71/107) developed hypersensitivity to at least one of the asparaginases. HLA-B*46:01 (OR 3.8, 95% CI 1.4–10.1, p

Published
2021
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40. COVID-19 vaccine acceptance and hesitancy among ethnic minorities in Hong Kong

Author

Gilbert T. Chua, Cheung Lok Yan, Wilfred HS Wong, Siddharth Sridhar, Kelvin KW To, Joseph Lau, Sharmila Gurung, Shalini Mahtani, Raymond Ho, Wing Sum Li, Jason CS Yam, Jaime S Rosa Duque, Ian C K Wong, Yu Lung Lau, Mike Yat Wah Kwan, and Patrick Ip

Subjects
ethnic minorities, covid-19 vaccine, acceptance, hesitancy, Immunologic diseases. Allergy, RC581-607, Therapeutics. Pharmacology, RM1-950
Abstract

Ethnic minorities account for 8% of the Hong Kong population, most are Filipino and Indonesian domestic helpers taking care of children and the elderly. To understand the COVID-19 vaccination rates and factors associated with vaccine acceptance of ethnic minorities, we performed a cross-sectional questionnaire study recruiting Hong Kong ethnic minorities aged ≥18 years between 1 July and 18 July 2021 in public areas. Demographics, knowledge about COVID-19, vaccination status, intention and reasons to receive the vaccine, and planning to be re-vaccinated were analyzed. Continuous and categorical variables were compared using unpaired t-test and Chi-square test, respectively. Potential confounders were adjusted using multiple logistic regression. 2,012 ethnic minorities participated, with a mean age of 39 years, of which 97.6% were female, 79.5% were Filipino, and 17.5% were Indonesian. 80.6% of participants were categorized as vaccine acceptance, and 69.2% were willing to be re-vaccinated. There were significantly more Filipinos than Indonesians in the vaccine acceptance group (p

Published
2022
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43. Assessment of SARS-CoV-2 immunity in convalescent children and adolescents

Author

Ip, Patrick, primary, Tsang, Hing Wai, additional, Chua, Gilbert T, additional, KW, Kelvin, additional, SC, Joshua Wong, additional, WW, Tu, additional, SY, Janette Kwok, additional, Wong, WHS, additional, Wang, Xiwei, additional, Zhang, Yanmei, additional, Duque, Jaime Rosa, additional, Chan, Godfrey, additional, WK, Chu, additional, CP, Pang, additional, KH, Paul Tam, additional, Lau, YL, additional, Wong, Ian, additional, WH, Leung, additional, Yuen, Kwok-Yung, additional, and YW, Mike Kwan, additional

Published
2024
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45. Epidemiology and Trends of Infective Meningitis in Neonates and Infants Less than 3 Months Old in Hong Kong

Author

Wong, Chi Hang, Duque, Jaime Rosa, Wong, Joshua Sung Chih, Chan, Chi-man Victor, Lam, Cheuk San Ivan, Fu, Yu Ming, Cheong, Kai-Ning, Chua, Gilbert T., Lee, Pamela P., Ip, Patrick, Ho, Marco Hok Kung, Wong, Ian Chi Kei, Chan, Godfrey Chi Fung, Leung, Wing Hang, Lee, So Lun, Lee, Kwok Piu, Shek, Chi Chiu, Wong, Ming Sum Rosanna, Wong, Mabel Siu Chun, Lau, Yu-Lung, and Kwan, Mike Yat-wah

Published
2021
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49. Safety and immunogenicity of 3 doses of BNT162b2 and CoronaVac in children and adults with inborn errors of immunity

Author

Daniel Leung, Xiaofeng Mu, Jaime S. Rosa Duque, Samuel M. S. Cheng, Manni Wang, Wenyue Zhang, Yanmei Zhang, Issan Y. S. Tam, Toby S. S. Lee, Jennifer H. Y. Lam, Sau Man Chan, Cheuk Hei Cheang, Yuet Chung, Howard H. W. Wong, Amos M. T. Lee, Wing Yan Li, Sara Chaothai, Leo C. H. Tsang, Gilbert T. Chua, Kai-Ning Cheong, Elaine Y. L. Au, Janette S. Y. Kwok, Koon Wing Chan, Patrick C. Y. Chong, Pamela P. W. Lee, Marco H. K. Ho, Tsz Leung Lee, Wenwei Tu, Malik Peiris, and Yu Lung Lau

Subjects
BNT162b2, CoronaVac, COVID-19, inborn errors of immunity, vaccine, Immunologic diseases. Allergy, RC581-607
Abstract

Our study (NCT04800133) aimed to determine the safety and immunogenicity in patients with IEIs receiving a 3-dose primary series of mRNA vaccine BNT162b2 (age 12+) or inactivated whole-virion vaccine CoronaVac (age 3+) in Hong Kong, including Omicron BA.1 neutralization, in a nonrandomized manner. Intradermal vaccination was also studied. Thirty-nine patients were vaccinated, including 16 with homologous intramuscular 0.3ml BNT162b2 and 17 with homologous intramuscular 0.5ml CoronaVac. Two patients received 3 doses of intradermal 0.5ml CoronaVac, and 4 patients received 2 doses of intramuscular BNT162b2 and the third dose with intradermal BNT162b2. No safety concerns were identified. Inadequate S-RBD IgG and surrogate virus neutralization responses were found after 2 doses in patients with humoral immunodeficiencies and especially so against BA.1. Dose 3 of either vaccine increased S-RBD IgG response. T cell responses against SARS-CoV-2 antigens were detected in vaccinated IEI patients by intracellular cytokine staining on flow cytometry. Intradermal third dose vaccine led to high antibody response in 4 patients. The primary vaccination series of BNT162b2 and CoronaVac in adults and children with IEIs should include 3 doses for optimal immunogenicity.

Published
2022
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50. Targeted Gene Sanger Sequencing Should Remain the First-Tier Genetic Test for Children Suspected to Have the Five Common X-Linked Inborn Errors of Immunity

Author

Koon-Wing Chan, Chung-Yin Wong, Daniel Leung, Xingtian Yang, Susanna F. S. Fok, Priscilla H. S. Mak, Lei Yao, Wen Ma, Huawei Mao, Xiaodong Zhao, Weiling Liang, Surjit Singh, Mohamed-Ridha Barbouche, Jian-Xin He, Li-Ping Jiang, Woei-Kang Liew, Minh Huong Thi Le, Dina Muktiarti, Fatima Johanna Santos-Ocampo, Reda Djidjik, Brahim Belaid, Intan Hakimah Ismail, Amir Hamzah Abdul Latiff, Way Seah Lee, Tong-Xin Chen, Jinrong Liu, Runming Jin, Xiaochuan Wang, Yin Hsiu Chien, Hsin-Hui Yu, Dinesh Raj, Revathi Raj, Jenifer Vaughan, Michael Urban, Sylvia van den Berg, Brian Eley, Anselm Chi-Wai Lee, Mas Suhaila Isa, Elizabeth Y. Ang, Bee Wah Lee, Allen Eng Juh Yeoh, Lynette P. Shek, Nguyen Ngoc Quynh Le, Van Anh Thi Nguyen, Anh Phan Nguyen Lien, Regina D. Capulong, Joanne Michelle Mallillin, Jose Carlo Miguel M. Villanueva, Karol Anne B. Camonayan, Michelle De Vera, Roxanne J. Casis-Hao, Rommel Crisenio M. Lobo, Ruby Foronda, Vicky Wee Eng Binas, Soraya Boushaki, Nadia Kechout, Gun Phongsamart, Siriporn Wongwaree, Chamnanrua Jiratchaya, Mongkol Lao-Araya, Muthita Trakultivakorn, Narissara Suratannon, Orathai Jirapongsananuruk, Teerapol Chantveerawong, Wasu Kamchaisatian, Lee Lee Chan, Mia Tuang Koh, Ke Juin Wong, Siew Moy Fong, Meow-Keong Thong, Zarina Abdul Latiff, Lokman Mohd Noh, Rajiva de Silva, Zineb Jouhadi, Khulood Al-Saad, Pandiarajan Vignesh, Ankur Kumar Jindal, Amit Rawat, Anju Gupta, Deepti Suri, Jing Yang, Elaine Yuen-Ling Au, Janette Siu-Yin Kwok, Siu-Yuen Chan, Wayland Yuk-Fun Hui, Gilbert T. Chua, Jaime Rosa Duque, Kai-Ning Cheong, Patrick Chun Yin Chong, Marco Hok Kung Ho, Tsz-Leung Lee, Wilfred Hing-Sang Wong, Wanling Yang, Pamela P. Lee, Wenwei Tu, Xi-Qiang Yang, and Yu Lung Lau

Subjects
inborn errors of immunity, primary immunodeficiency diseases, targeted gene, Sanger sequencing, whole exome sequencing, next generation sequencing, Immunologic diseases. Allergy, RC581-607
Abstract

To address inborn errors of immunity (IEI) which were underdiagnosed in resource-limited regions, our centre developed and offered free genetic testing for the most common IEI by Sanger sequencing (SS) since 2001. With the establishment of The Asian Primary Immunodeficiency (APID) Network in 2009, the awareness and definitive diagnosis of IEI were further improved with collaboration among centres caring for IEI patients from East and Southeast Asia. We also started to use whole exome sequencing (WES) for undiagnosed cases and further extended our collaboration with centres from South Asia and Africa. With the increased use of Next Generation Sequencing (NGS), we have shifted our diagnostic practice from SS to WES. However, SS was still one of the key diagnostic tools for IEI for the past two decades. Our centre has performed 2,024 IEI SS genetic tests, with in-house protocol designed specifically for 84 genes, in 1,376 patients with 744 identified to have disease-causing mutations (54.1%). The high diagnostic rate after just one round of targeted gene SS for each of the 5 common IEI (X-linked agammaglobulinemia (XLA) 77.4%, Wiskott–Aldrich syndrome (WAS) 69.2%, X-linked chronic granulomatous disease (XCGD) 59.5%, X-linked severe combined immunodeficiency (XSCID) 51.1%, and X-linked hyper-IgM syndrome (HIGM1) 58.1%) demonstrated targeted gene SS should remain the first-tier genetic test for the 5 common X-linked IEI.

Published
2022
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