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135 results on '"Taylor, Maureen B."'

4. Feasibility of the Bag-Mediated Filtration System for Environmental Surveillance of Poliovirus in Kenya

Author

Zhou, Nicolette A., Fagnant-Sperati, Christine S., Komen, Evans, Mwangi, Benlick, Mukubi, Johnstone, Nyangao, James, Hassan, Joanne, Chepkurui, Agnes, Maina, Caroline, van Zyl, Walda B., Matsapola, Peter N., Wolfaardt, Marianne, Ngwana, Fhatuwani B., Jeffries-Miles, Stacey, Coulliette-Salmond, Angela, Peñaranda, Silvia, Shirai, Jeffry H., Kossik, Alexandra L., Beck, Nicola K., Wilmouth, Robyn, Boyle, David S., Burns, Cara C., Taylor, Maureen B., Borus, Peter, and Meschke, John Scott

Published
2020
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9. Norovirus Genetic Diversity in Children under Five Years Old with Acute Diarrhea in Mozambique (2014–2015)

Author

Chilaúle, Jorfélia J., primary, Munlela, Benilde, additional, Mans, Janet, additional, Mabasa, Victor V., additional, Marques, Selma, additional, Bauhofer, Adilson Fernando Loforte, additional, Jane, Graziela, additional, Anapakala, Elda, additional, Oliveira, Fernanda, additional, Cossa-Moiane, Idalécia, additional, Guimarães, Esperança, additional, Sambo, Júlia, additional, Bero, Diocreciano Matias, additional, Chissaque, Assucênio, additional, Deus, Nilsa de, additional, and Taylor, Maureen B., additional

Published
2022
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14. Analytical Methods for Virus Detection in Water and Food

Author

Bosch, Albert, Sánchez, Gloria, Abbaszadegan, Morteza, Carducci, Annalaura, Guix, Susana, Le Guyader, Françoise S., Netshikweta, Rembuluwani, Pintó, Rosa M., van der Poel, Wim H. M., Rutjes, Saskia, Sano, Daisuke, Taylor, Maureen B., van Zyl, Walda B., Rodríguez-Lázaro, David, Kovač, Katarina, and Sellwood, Jane

Published
2011
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19. Detection of potentially pathogenic enteric viruses in environmental samples from Kenya using the bag-mediated filtration system

Author

van Zyl, Walda B., A. Zhou, Nicolette, Wolfaardt, Marianne, Matsapola, Peter N., Ngwana, Fhatuwani B., Symonds, Erin M., Fagnant-Sperati, Christine S., Shirai, Jeffry H., Kossik, Alexandra L., Beck, Nicola K., Komen, Evans, Mwangi, Benlick, Nyangao, James, Boyle, David S., Borus, Peter, Taylor, Maureen B., and Meschke, J. Scott

Subjects
BMFS, enteric viruses, viruses, environmental surveillance, pepper mild mottle virus, wastewater, Research Article, environmental monitoring
Abstract

Enteric virus environmental surveillance via a highly sensitive method is critical, as many enteric viruses have low infectious doses and can persist in the environment for extended periods. This study determined the potential of the novel bag-mediated filtration system (BMFS) to recover human enteric viruses and pepper mild mottle virus (PMMoV) from wastewater and wastewater-impacted surface waters, examined PMMoV use as a fecal contamination indicator in Kenya, and identified potential BMFS process controls. From April 2015 to April 2016, BMFS samples were collected from seven sites in Kenya (n = 59). Enteroviruses and PMMoV were detected in 100% of samples, and human adenovirus, human astrovirus, hepatitis A virus, norovirus GI, norovirus GII, sapovirus, and human rotavirus were detected in the majority of samples. The consistent detection of enteroviruses and PMMoV suggests that these viruses could be used as indicators in similarly fecally contaminated sites and BMFS process controls. As contamination of surface water sources remains a global issue, enteric virus environmental surveillance is necessary. This study demonstrates an effective way to sample large volumes of wastewater and wastewater-impacted surface waters for the detection of multiple enteric viruses simultaneously.

Published
2018

21. Feasibility of the Bag-Mediated Filtration System for Environmental Surveillance of Poliovirus in Kenya

Author

Zhou, Nicolette A., primary, Fagnant-Sperati, Christine S., additional, Komen, Evans, additional, Mwangi, Benlick, additional, Mukubi, Johnstone, additional, Nyangao, James, additional, Hassan, Joanne, additional, Chepkurui, Agnes, additional, Maina, Caroline, additional, van Zyl, Walda B., additional, Matsapola, Peter N., additional, Wolfaardt, Marianne, additional, Ngwana, Fhatuwani B., additional, Jeffries-Miles, Stacey, additional, Coulliette-Salmond, Angela, additional, Peñaranda, Silvia, additional, Shirai, Jeffry H., additional, Kossik, Alexandra L., additional, Beck, Nicola K., additional, Wilmouth, Robyn, additional, Boyle, David S., additional, Burns, Cara C., additional, Taylor, Maureen B., additional, Borus, Peter, additional, and Meschke, John Scott, additional

Published
2019
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22. Detection of potentially pathogenic enteric viruses in environmental samples from Kenya using the bag-mediated filtration system

Author

van Zyl, Walda B., primary, Zhou, Nicolette A., primary, Wolfaardt, Marianne, primary, Matsapola, Peter N., primary, Ngwana, Fhatuwani B., primary, Symonds, Erin M., primary, Fagnant-Sperati, Christine S., primary, Shirai, Jeffry H., primary, Kossik, Alexandra L., primary, Beck, Nicola K., primary, Komen, Evans, primary, Mwangi, Benlick, primary, Nyangao, James, primary, Boyle, David S., primary, Borus, Peter, primary, Taylor, Maureen B., primary, and Scott Meschke, J., primary

Published
2019
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24. Molecular epidemiology of human bocavirus infection in hospitalized children with acute gastroenteritis in South Africa, 2009‐2015.

Author

Netshikweta, Rembuluwani, Chidamba, Lizyben, Nadan, Sandrama, Taylor, Maureen B., and Page, Nicola A.

Subjects
HOSPITAL care of children, MOLECULAR epidemiology, GASTROENTERITIS, VIRUS-induced enzymes, ENZYME-linked immunosorbent assay
Abstract

Human bocavirus (HBoV) is known to be associated with a variety of clinical manifestation including acute gastroenteritis (AGE). Despite their global prevalence, no data is available on the epidemiology of HBoV associated with AGE in South Africa (SA). Between April 2009 and April 2015, 3765 stool specimens were collected from children less than 5 years of age hospitalized with diarrhea. Specimens were screened for selected enteric viruses by enzyme immunoassay and quantitative polymerase chain reaction, bacteria by culture and parasites by staining and microscopy. HBoV was detected in 5.63% (212 of 3765) of cases, the majority of which were children ≤2 years (92%, 195 of 212), and were common in the summer and autumn months (60%; 128 of 212). Further investigations of coinfections showed that bacteria (adjusted odds ratio [aOR] = 2.20; 95% confidence interval [CI], 1.41‐3.45; P =.001) and sapovirus (aOR = 2.05; 95% CI, 1.08‐3.86; P =.027) were significantly associated with HBoV in multivariate analysis. HBoV genotyping was successful in 191 of the 212 samples with HBoV‐1 being the most prevalent genotype observed (79.6%; 152 of 191) followed by HBoV‐3 (13.6%; 26 of 191), HBoV‐2 (5.2%; 10 of 191), and HBoV‐4 (1.6%; 3 of 191). The high prevalence of HBoV‐1, a virus known to be associated with respiratory infections, and the association between HBoV‐positive specimens and already established AGE agents, suggests that HBoV may play a limited role in the observed AGE cases in SA. Highlights: Human bocavirus was detected in 5.6% of hospitalized diarrhoea cases in children <5 years in South Africa between 2009 and 2015.Human bocavirus type 1 was the most common strain detected Human bocavirus may play a limited role in diarrhoeal disease burden in South Africa [ABSTRACT FROM AUTHOR]

Published
2020
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31. Epidemiology of human astroviruses among children younger than 5 years: Prospective hospital‐based sentinel surveillance in South Africa, 2009‐2014.

Author

Nadan, Sandrama, Taylor, Maureen B., Groome, Michelle J., Cohen, Cheryl, Madhi, Shabir A., and Page, Nicola A.

Abstract

Background: The epidemiology of human astroviruses (HAstVs) in hospitalised patients less than 5 years of age from selected sites in South Africa was investigated. Diarrheagenic stool specimens collected from April 2009 to May 2014 were screened retrospectively for selected viruses, bacteria and parasites. Method: Patient data were analysed to identify epidemiologic factors most frequently detected with HAstV infections. The following case‐comparisons were investigated; HAstV‐positive and HAstV‐negative children, human immunodeficiency virus (HIV)‐infected and HIV‐uninfected (HAstV‐positive) children and HIV‐exposed and unexposed (HAstV‐positive HIV‐uninfected) children. Results: Astrovirus was identified in 7.0% (234/3340) of cases and most frequently in ages 7 to 12 months (9.2%; 90/975) compared with 5.8% to 6.6% in other 6‐month age groups. No seasonal trends were observed. More HAstVs were detected in children from homes that used outdoor water sources (7.6%) compared to indoor sources [5.7%; adjusted odds ratio (aOR), 1.5; 95% CI, 1.1‐2.1; P = 0.009]. Astroviruses were detected in 8.4% (67/799) of HIV‐uninfected patients that were exposed to HIV compared with 5.9% (74/1257) of HIV‐unexposed patients (P = 0.032). Conclusion: Astroviruses were most prevalent in children aged 7 to 12 months and were detected throughout the study period. The study was limited as only hospitalised patients were investigated and no comparisons were made to diarrhoea‐free control groups. Future HAstV surveillance should include community‐based studies and children presenting at outpatient facilities. 1.Human astroviruses were identified in 7% of patients less than 5 years of age hospitalised for acute gastroenteritis and were detected frequently in the age group 7 to 12 months.2.The prevalence of human astroviruses was similar in HIV‐infected children as compared with HIV‐uninfected children with diarrhoea.3.Human astroviruses were detected more frequently among cases from homes that used outdoor water sources compared to indoor sources.4.More human astrovirus infections were detected in HIV‐uninfected patients that were exposed to HIV compared to HIV‐unexposed patients. [ABSTRACT FROM AUTHOR]

Published
2019
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38. Rotavirus G and P Types Circulating in the Eastern Region of Kenya

Author

Kiulia, Nicholas M., primary, Nyaga, Martin M., additional, Seheri, Mapaseka L., additional, Wolfaardt, Marianne, additional, van Zyl, Walda B., additional, Esona, Mathew D., additional, Irimu, Grace, additional, Inoti, Murithi, additional, Gatinu, Bernard W., additional, Njenga, Peter K., additional, Taylor, Maureen B., additional, and Nyachieo, Atunga, additional

Published
2014
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43. Analytical Methods for Virus Detection in Water and Food

Author

Bosch, Albert, primary, Sánchez, Gloria, additional, Abbaszadegan, Morteza, additional, Carducci, Annalaura, additional, Guix, Susana, additional, Le Guyader, Françoise S., additional, Netshikweta, Rembuluwani, additional, Pintó, Rosa M., additional, van der Poel, Wim H. M., additional, Rutjes, Saskia, additional, Sano, Daisuke, additional, Taylor, Maureen B., additional, van Zyl, Walda B., additional, Rodríguez-Lázaro, David, additional, Kovač, Katarina, additional, and Sellwood, Jane, additional

Published
2010
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