41 results on '"OUEDRAOGO, F."'
Search Results
2. Experimental study of water evaporation rate, at the surface of aqueous solution, under the effect of a discontinuity of chemical potential – Effect of water activity and air pressure
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Bénet, J.-C., Ouoba, S., Ouedraogo, F., and Cherblanc, F.
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- 2021
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3. Épidémiologie des urgences chirurgicales néonatales à Ouagadougou
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Ouédraogo, I., Kaboré, R., Napon Madina, A., Ouédraogo, F., Ouangré, E., Bandré, E., Tapsoba, W.T., Soré, O., Béré, B., Kaboré, R.A.F., and Wandaogo, A.
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- 2015
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4. Water transfer in soil at low water content. Is the local equilibrium assumption still appropriate?
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Ouedraogo, F., Cherblanc, F., Naon, B., and Bénet, J.-C.
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- 2013
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5. Water flow in soil at small water contents: a simple approach to estimate the relative hydraulic conductivity in sandy soil
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Kebre, M. B., Cherblanc, F., Ouedraogo, F., Jamin, F., Naon, B., Zougmore, F., and Benet, J.‐C.
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- 2017
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6. Le syndrome de Prader-Willi : à propos d'un cas au Burkina Faso
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Kam, L., Dao, F., Yonaba, C., Ayereoue, J., Zoungrana, C., Ouedraogo, F., Bouda, C., and Zombre, V.
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- 2007
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7. Agénésie du corps calleux révélée par une encéphalocèle
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Kam, L., Dao, F., Diallo, O., Yonaba, C., Ayereoue, J., Bouda, C., Zoungrana, C., Ouedraogo, F., and Zombre, V.
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- 2007
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8. DOES TEMPERATURE AFFECT SOIL ORGANIC MATTER DECOMPOSITION AND DISSOLVED ORGANIC MATTER OPTICAL PROPERTIES?
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Ouedraogo, F., primary, Denaix, L., additional, Sourzac, M., additional, Coriou, C., additional, Bussiere, S., additional, Millin, S., additional, Janot, N., additional, Cornu, J., additional, Fanin, N., additional, and Parlanti, E., additional
- Published
- 2021
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9. New models for geoscience higher education in West Africa
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Jessell, M., Baratoux, David, Siebenaller, L., Hein, K., Maduekwe, A., Ouedraogo, F. M., Baratoux, Lenka, Diagne, M., Cucuzza, J., Seymon, A., and Sow, E.
- Subjects
Research ,West Africa ,Vocational training ,Higher education ,Minerals exploration - Abstract
The challenges facing government-funded higher education institutions in West Africa in response to the demand for mineral resources require a spectrum of responses aligned with the multinational development programs. Efforts to meet the demands of industry and government organisations for skilled staff are undermined by the large numbers of students attracted to Earth Science courses in Africa. The African Union's African Mining Vision, the UN's Sustainable Development Goals and the New Education Model for Africa provide a framework for progress, however, there are only a few concrete examples that allow us to explore the strengths and limitations of different approaches. Two proactive initiatives based on locally-identified needs and that involve local and international collaborations are presented that allow such an analysis. The first, a public-private partnership entitled the West African Exploration Initiative (WAX!), provides graduate and professional training as a result of direct industry and partner government financial and in-kind support. The second initiative known as GEOLOOC is a new online training program supported by UNESCO and the International Mining for Development Centre that unites several West African universities in creating a common resource pool of Earth Science training materials. These activities are being carried out in collaboration with the local universities, and a new professional training centre based in Ouagadougou, Burkina Faso. In West Africa, by addressing locally identified gaps in higher education delivery and by building local and international collaborations, the projects described here are starting to successfully implement new models to contribute to the enhancement of geoscience higher education. These new models complement existing government funded Higher Education systems by providing them with much-needed support at a time of rapid change.
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- 2018
10. Accès à l’eau potable et risques sanitaires en zone périphérique de Ouagadougou, Burkina Faso
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Rouamba, J., primary, Nikiema, E., additional, Rouamba, S., additional, and de Charles Ouedraogo, F., additional
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- 2016
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11. Enjeux des agro-carburants au Burkina Faso : le cas du Jatropha curcas L
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Janin, Pierre and Ouedraogo, F. de C.
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SECURITE ALIMENTAIRE ,INNOVATION ,PRODUCTION AGRICOLE ,CRISE ALIMENTAIRE ,DEVELOPPEMENT RURAL ,AGROCARBURANT ,PLANTE UTILE ,COMMUNAUTE VILLAGEOISE ,FILIERE ECONOMIQUE - Published
- 2009
12. Transformations agraires et nouvelles mobilités autour d'un grand barrage (Bagré, Burkina Faso)
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Ouedraogo, F. de C. and Janin, Pierre
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MOBILITE ,CENTRE DE SANTE ,SYSTEME AGRAIRE ,MODE DE VIE ,VARIATION SAISONNIERE ,ALIMENTATION HUMAINE ,MIGRATION SAISONNIERE ,IMPACT SOCIOECONOMIQUE ,SANTE PUBLIQUE ,GESTION DE L'ESPACE ,AMENAGEMENT HYDROAGRICOLE ,STRUCTURE AGRAIRE - Published
- 2004
13. Comparison of Kinyoun, auramine O, and Ziehl-Neelsen staining for diagnosing tuberculosis at the National Tuberculosis Center in Burkina Faso
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Sawadogo, T.L., additional, Savadogo, L.G.B., additional, Diande, S., additional, Ouedraogo, F., additional, Mourfou, A., additional, Gueye, A., additional, Sawadogo, I., additional, Nebié, B., additional, Sangare, L., additional, and Ouattara, A.S., additional
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- 2012
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14. MEASUREMENT OF THE CHEMICAL POTENTIAL OF A LIQUID IN POROUS MEDIA
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Benet, Jean-Claude, primary, Ramirez-Martinez, A., additional, Ouedraogo, F., additional, and Cherblanc, F., additional
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- 2012
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15. Mycobacterium tuberculosisdrug-resistance in previously treated patients in Ouagadougou, Burkina Faso
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Sangare, L, primary, Diande, S, additional, Kouanda, S, additional, Dingtoumda, BI, additional, Mourfou, A, additional, Ouedraogo, F, additional, Sawadogo, I, additional, Nebie, B, additional, Gueye, A, additional, Sawadogo, LT, additional, and Traore, AS, additional
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- 2010
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16. Congrès international de médecine tropicale en langue française
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Molez, Jean-François, Bosseno, Marie-France, Ouedraogo, F., Pignol, J.P., Traore, G., and Zei, M.
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PARASITEMIE PLACENTAIRE ,TRANSMISSION ,SURVEILLANCE EPIDEMIOLOGIQUE ,PALUDISME ,MILIEU URBAIN ,PREVALENCE - Published
- 1991
17. Résumés des communications présentées à la 16ème conférence technique de l'OCEAC
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Molez, Jean-François, Bosseno, Marie-France, Ouedraogo, F., Pignol, J.P., Traore, G., and Zei, M.
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EPIDEMIOLOGIE ,PARASITEMIE PLACENTAIRE ,TRANSMISSION ,FEMME ,GROSSESSE ,ENQUETE ,PALUDISME ,MILIEU URBAIN ,PREVALENCE - Published
- 1990
18. P12-4 Le personnel de santé face à l’exposition accidentelle au sang et aux liquides biologiques dans le contexte de l’infection par le virus de l’immunodéficience humaine et du sida au Burkina Faso
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Sanon, A.J., primary, Ouedraogo, F., additional, and Revillion, M., additional
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- 2004
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19. Fast Dynamics in Internet Topology: Observations and First Explanations.
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Magnien, C., Ouedraogo, F., Valadon, G., and Latapy, M.
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- 2009
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20. A Radar for the Internet.
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Latapy, M., Magnien, C., and Ouedraogo, F.
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- 2008
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21. LA MALADIE DE BESSEF HOGEN OU MALADIE EXOSTOSANTE AVEC COMPRESSION MEDULLAIRE: A PROPOS D’UN CAS DANS LE SERVICE DE PEDIATRIE DU CHU YALGADO OUEDRAOGO, OUAGADOUGOU, B.F.
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DAO, F., YONABA, C., DIALLO, O., TRAORE, O., TRAORE, A., AYEREOUE, J., ZOUNGRANA, C., OUEDRAOGO, F., BOUDA, C., ZOMBRE, V., and KAM, L.
- Abstract
Copyright of Mali Médical is the property of Mali Medical, Faculte de Medecine, de Pharmacie et d'Odonto-stomatologie and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2013
22. 3D modelling of magnetic field and light concentration effects on a bifacial silicon solar cell illuminated by its rear side
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Zoungrana, M, Zerbo, I, Ouedraogo, F, Zouma, B, and Zougmore, F
- Abstract
According to their installation places, the solar cells are often under the effect of the electro-magnetic field coming from outside sources as telecommunication antennas, radio antennas... These magnetic fields have a big influence on the distribution and mobility of charge carriers in the base of the solar cell and therefore on its efficiency. This work presents a tree-dimensional study of bifacial silicon solar cell under intense light concentration (more than 50 suns) and under a constant magnetic field. This approach is based on the resolution of the minority continuity equation, taking into account the distribution of the electric field in the bulk evaluated as a function of both majority and minority carrier densities. In this approach new analytical expression of carrier's density is established for rear side illumination. The effects of light concentration and magnetic field on excess minority carriers distribution, photocurrent and photovoltage in solar cell base are analysed.
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- 2012
23. OPTIMIZATION OF COPPER INDIUM GALLIUM Di-SELENIDE (CIGS) BASED SOLAR CELLS BY BACK GRADING.
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OUEDRAOGO, S., SAM, R., OUEDRAOGO, F., KEBRE, M. B., NDJAKA, J. M., and ZOUGMORE, F.
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SOLAR cells , *COPPER indium selenide , *BAND gaps , *SHORT-circuit currents , *OPEN-circuit voltage - Abstract
We performed modeling and simulation of Cu(In,Ga)Se2 (CIGS) thin film solar cell, using SCAPS-1D device simulator, and we especially investigated the influence of absorber back surface region grading. The band-gap in the back surface region, as well as the thickness of the back surface grading layer, were varied to achieve the optimal performances. Based on these results, an optimal back-grading structure for Cu(In,Ga)Se2 solar cell is proposed. It is shown that, the short-circuit current density (Jsc) improves with increasing the absorber band-gap in the back surface region. Very high Jsc of 32.72 mA/cm2 was obtained, when the band-gap of the absorber near the back contact is 0.2 to 0.5 higher than the absorber bulk band-gap. The Open-circuit Voltage (V∝), the fill factor (FF) and the efficiency (η) of the solar cell decrease for high band-gap near the back contact. The efficiency and the fill factor obtained for our model are respectively 16% and 75%. A comparison with published data for the Cu(In,Ga)Se2 cells shows an excellent agreement. [ABSTRACT FROM AUTHOR]
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- 2013
24. A meta-analysis of left ventricular dysfunction in ankylosing spondylitis.
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Bolaji O, Oriaifo O, Adabale O, Dilibe A, Kuruvada K, Ouedraogo F, Ezeh E, Nair A, Olanipekun T, Mazimba S, and Alraies C
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- Humans, Male, Female, Middle Aged, Adult, Risk Factors, Echocardiography methods, Aged, Spondylitis, Ankylosing physiopathology, Spondylitis, Ankylosing complications, Spondylitis, Ankylosing epidemiology, Ventricular Dysfunction, Left physiopathology, Ventricular Dysfunction, Left epidemiology, Stroke Volume physiology
- Abstract
Ankylosing spondylitis (AS) is a chronic inflammatory arthritis affecting the spine, presenting a considerable morbidity risk. Although evidence consistently indicates an elevated risk of ischemic heart disease among AS patients, debates persist regarding the likelihood of these patients developing left ventricular dysfunction (LVD). Our investigation aimed to determine whether individuals with AS face a greater risk of LVD compared to the general population. To accomplish this, we identified studies exploring LVD in AS patients across five major databases and Google Scholar. Initially, 431 studies were identified, of which 30 met the inclusion criteria, collectively involving 2933 participants. Results show that AS patients had: (1) poorer Ejection Fraction (EF) [mean difference (MD): -0.92% (95% CI: -1.25 to -0.59)], (2) impaired Early (E) and Late (atrial-A) ventricular filling velocity (E/A) ratio [MD: -0.10 m/s (95% CI: -0.13 to -0.08)], (3) prolonged deceleration time (DT) [MD: 12.30 ms (95% CI: 9.23-15.36)] and, (4) a longer mean isovolumetric relaxation time (IVRT) [MD: 8.14 ms (95% CI: 6.58-9.70)] compared to controls. Though AS patients show increased risks of both systolic and diastolic LVD, we found no significant differences were observed in systolic blood pressure [MD: 0.32 mmHg (95% Confidence Interval (CI): -2.09 to 2.73)] or diastolic blood pressure [MD: 0.30 mmHg (95% CI: -0.40 to 1.01)] compared to the general population. This study reinforces AS patients' susceptibility to LVD without a notable difference in HTN risk., (© 2024 The Authors. The Journal of Clinical Hypertension published by Wiley Periodicals LLC.)
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- 2024
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25. Prevalence and factors associated with cognitive frailty in heart failure: a systematic review and meta-analysis protocol.
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Bolaji OA, Shoar S, Ouedraogo F, Demelash S, and Adabale O
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- Humans, Adolescent, Prevalence, Quality of Life, Systematic Reviews as Topic, Meta-Analysis as Topic, Cognition, Frailty epidemiology, Heart Failure complications, Heart Failure epidemiology
- Abstract
Introduction: Heart failure (HF) is a global health issue affecting millions of people worldwide. Cognitive frailty, a syndrome characterised by physical frailty and cognitive impairment without dementia, is increasingly recognised in this population. Cognitive frailty is associated with worse outcomes, including increased hospitalisation, disability and mortality. This systematic review and meta-analysis aimed to investigate the incidence, prevalence and predictors of cognitive frailty in HF patients., Methods: A systematic search will be conducted in MEDLINE/PubMed, EMBASE/Ovid, Web of Science and Google Scholar from inception to the latest search date. Eligible studies will report original data on adult patients (age ≥18 years) with HF, focusing on the incidence, prevalence and predictors of cognitive frailty. Two investigators will independently extract data and assess study quality using the Newcastle-Ottawa Scale and mixed-methods appraisal tool. Meta-analyses and meta-regression will be performed to estimate the pooled prevalence of cognitive frailty in HF patients and to identify predictors associated with increased risk, respectively. Subgroup analyses will be conducted to explore potential sources of heterogeneity., Ethics and Dissemination: This systematic review does not require ethical approval and informed consent, as it does not use identifiable patient data. The results of this study will be submitted for publication in a peer-reviewed medical journal. This comprehensive meta-analysis of the literature on cognitive frailty among HF patients will inform tailored interventions and management strategies, ultimately improving patients' quality of life and outcomes., Competing Interests: Competing interests: None declared., (© Author(s) (or their employer(s)) 2023. Re-use permitted under CC BY-NC. No commercial re-use. See rights and permissions. Published by BMJ.)
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- 2023
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26. Baseline malarial and nutritional profile of children under seasonal malaria chemoprevention coverage in the health district of Nanoro, Burkina Faso.
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Sondo P, Rouamba T, Tahita MC, Derra K, Kabore B, Tibiri YNG, Kabore HALF, Hien SF, Ouedraogo F, Kazienga A, Ilboudo H, Rouamba E, Lefevre T, and Tinto H
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- Humans, Child, Infant, Adolescent, Child, Preschool, Burkina Faso epidemiology, Seasons, Cross-Sectional Studies, Chemoprevention, Antimalarials therapeutic use, Malaria epidemiology, Malaria prevention & control, Malaria drug therapy, Malnutrition drug therapy
- Abstract
Seasonal Malaria chemoprevention (SMC) is one of the large-scale life-saving malaria interventions initially recommended for the Sahel subregion, including Burkina Faso and recently extended to other parts of Africa. Initially, SMC was restricted to children 3 to 59 months old, but an extension to older children in some locations was recently recommended. Further characterization of SMC population profile beyond age criterion is necessary for understanding factors that could negatively impact the effectiveness of the intervention and to define complementary measures that could enhance its impact. Children were assessed through a cross-sectional survey during the first month of the 2020 SMC campaign (July-August 2020) as part of the SMC-NUT project in the health district of Nanoro. Parameters such as body temperature, weight, height, mid-upper arm circumference (MUAC) were assessed. In addition, blood sample was collected for malaria diagnosis by rapid diagnostic tests (RDT) and microscopy, and for haemoglobin measurement. A total of 1059 children were enrolled. RDT positivity rate (RPR) was 22.2%, while microscopy positivity rate (MPR) was 10.4%, with parasitaemia levels ranging from 40 to 70480/μL. RPR and MPR increased as patient age increased. Wasting was observed in 7.25% of children under SMC coverage while the prevalence of stunting and underweight was 48.79% and 23.38%, respectively. As the age of the children increased, an improvement in their nutritional status was observed. Finally, undernourished children had higher parasite densities than children with adequate nutritional status. In the health district of Nanoro, children who received Seasonal Malaria Chemoprevention (SMC) were mostly undernourished during the period of SMC delivery, suggesting the need for combining the SMC with synergistic interventions against malnutrition to achieve best impact., Competing Interests: The authors have declared that no competing interests exist, (Copyright: © 2023 Sondo et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.)
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- 2023
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27. Navigating the Esophageal Enigma: A Vascular Odyssey of Dysphagia.
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Bolaji O, Ouedraogo F, Adabale OK, and Ugoala OS
- Abstract
We report a 58-year-old female with severe throat pain, difficulty swallowing, choking on solid meals, coughing, and hoarseness. CT angiography of the chest revealed vascular compression of the esophagus by an aberrant right subclavian artery (ARSA). The patient underwent thoracic endovascular aortic repair (TEVAR) and revascularization to address the ARSA. The patient experienced significant improvement in her symptoms following the surgical intervention. Dysphagia lusoria is a rare condition involving compression of the esophagus and airway by an ARSA. While medical management is the first line of treatment for mild symptoms, surgical intervention is often necessary for severe cases or those unresponsive to conservative management. TEVAR with revascularization is a feasible and minimally invasive option for treating symptomatic non-aneurysmal ARSA, potentially resulting in favorable outcomes., Competing Interests: The authors have declared that no competing interests exist., (Copyright © 2023, Bolaji et al.)
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- 2023
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28. Gunshot Wound to the Spine With Delayed Radiculopathy: A Case Report.
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Patel K, Navara R, Ouedraogo F, Joel R, and Bowman B
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Gunshot wounds (GSWs) to any part of the body can leave a trail of insidious complications. When the spinal cord is the injured organ, these sequelae can be debilitating to the patient and often exhaust all known therapeutic approaches available to the providers. The management of pain associated with GSWs to the spine is often a clinical challenge and there is often a question as to whether or not surgical intervention can help with pain relief in these cases. Here, we present a 45-year-old woman who experienced delayed radicular pain following a GSW to the spine with a retained bullet at the level of the lumbosacral canal. After an unsuccessful comprehensive multimodal analgesia, the patient underwent surgical removal of the bullet, which did not successfully provide a substantial lasting analgesic effect. This case demonstrates the potential for surgical failure and supports the general recommendation of more conservative management in this population., Competing Interests: The authors have declared that no competing interests exist., (Copyright © 2022, Patel et al.)
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- 2022
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29. Efficacy and immunogenicity of R21/Matrix-M vaccine against clinical malaria after 2 years' follow-up in children in Burkina Faso: a phase 1/2b randomised controlled trial.
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Datoo MS, Natama HM, Somé A, Bellamy D, Traoré O, Rouamba T, Tahita MC, Ido NFA, Yameogo P, Valia D, Millogo A, Ouedraogo F, Soma R, Sawadogo S, Sorgho F, Derra K, Rouamba E, Ramos-Lopez F, Cairns M, Provstgaard-Morys S, Aboagye J, Lawrie A, Roberts R, Valéa I, Sorgho H, Williams N, Glenn G, Fries L, Reimer J, Ewer KJ, Shaligram U, Hill AVS, and Tinto H
- Subjects
- Humans, Burkina Faso, Follow-Up Studies, Double-Blind Method, Adjuvants, Immunologic, Immunogenicity, Vaccine, Rabies Vaccines, Malaria
- Abstract
Background: Malaria is a leading cause of morbidity and mortality worldwide. We previously reported the efficacy of the R21/Matrix-M malaria vaccine, which reached the WHO-specified goal of 75% or greater efficacy over 12 months in the target population of African children. Here, we report the safety, immunogenicity, and efficacy results at 12 months following administration of a booster vaccination., Methods: This double-blind phase 1/2b randomised controlled trial was done in children aged 5-17 months in Nanoro, Burkina Faso. Eligible children were enrolled and randomly assigned (1:1:1) to receive three vaccinations of either 5 μg R21/25 μg Matrix-M, 5 μg R21/50 μg Matrix-M, or a control vaccine (the Rabivax-S rabies vaccine) before the malaria season, with a booster dose 12 months later. Children were eligible for inclusion if written informed consent could be provided by a parent or guardian. Exclusion criteria included any existing clinically significant comorbidity or receipt of other investigational products. A random allocation list was generated by an independent statistician by use of block randomisation with variable block sizes. A research assistant from the University of Oxford, independent of the trial team, prepared sealed envelopes using this list, which was then provided to the study pharmacists to assign participants. All vaccines were prepared by the study pharmacists by use of the same type of syringe, and the contents were covered with an opaque label. Vaccine safety, efficacy, and a potential correlate of efficacy with immunogenicity, measured as anti-NANP antibody titres, were evaluated over 1 year following the first booster vaccination. The population in which the efficacy analyses were done comprised all participants who received the primary series of vaccinations and a booster vaccination. Participants were excluded from the efficacy analysis if they withdrew from the trial within the first 2 weeks of receiving the booster vaccine. This trial is registered with ClinicalTrials.gov (NCT03896724), and is continuing for a further 2 years to assess both the potential value of additional booster vaccine doses and longer-term safety., Findings: Between June 2, and July 2, 2020, 409 children returned to receive a booster vaccine. Each child received the same vaccination for the booster as they received in the primary series of vaccinations; 132 participants received 5 μg R21 adjuvanted with 25 μg Matrix-M, 137 received 5 μg R21 adjuvanted with 50 μg Matrix-M, and 140 received the control vaccine. R21/Matrix-M had a favourable safety profile and was well tolerated. Vaccine efficacy remained high in the high adjuvant dose (50 μg) group, similar to previous findings at 1 year after the primary series of vaccinations. Following the booster vaccination, 67 (51%) of 132 children who received R21/Matrix-M with low-dose adjuvant, 54 (39%) of 137 children who received R21/Matrix-M with high-dose adjuvant, and 121 (86%) of 140 children who received the rabies vaccine developed clinical malaria by 12 months. Vaccine efficacy was 71% (95% CI 60 to 78) in the low-dose adjuvant group and 80% (72 to 85) in the high-dose adjuvant group. In the high-dose adjuvant group, vaccine efficacy against multiple episodes of malaria was 78% (95% CI 71 to 83), and 2285 (95% CI 1911 to 2568) cases of malaria were averted per 1000 child-years at risk among vaccinated children in the second year of follow-up. Among these participants, at 28 days following their last R21/Matrix-M vaccination, titres of malaria-specific anti-NANP antibodies correlated positively with protection against malaria in both the first year of follow-up (Spearman's ρ -0·32 [95% CI -0·45 to -0·19]; p=0·0001) and second year of follow-up (-0·20 [-0·34 to -0·06]; p=0·02)., Interpretation: A booster dose of R21/Matrix-M at 1 year following the primary three-dose regimen maintained high efficacy against first and multiple episodes of clinical malaria. Furthermore, the booster vaccine induced antibody concentrations that correlated with vaccine efficacy. The trial is ongoing to assess long-term follow-up of these participants and the value of further booster vaccinations., Funding: European and Developing Countries Clinical Trials Partnership 2 (EDCTP2), Wellcome Trust, and NIHR Oxford Biomedical Research Centre., Translation: For the French translation of the abstract see Supplementary Materials section., Competing Interests: Declaration of interests AVSH and KJE are named as co-inventors on patent applications related to R21. GG, LF, and JR are employees of Novavax, developers of the Matrix-M adjuvant. US is an employee of the Serum Institute of India, a co-developer of the R21/Matrix-M vaccine. All other authors declare no competing interests., (Copyright © 2022 The Author(s). Published by Elsevier Ltd. This is an Open Access article under the CC BY-NC-ND 4.0 license. Published by Elsevier Ltd.. All rights reserved.)
- Published
- 2022
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30. Impact and operational feasibility of adding malaria infection screening using an ultrasensitive RDT for placental and fetal outcomes in an area of high IPTP-SP coverage in Burkina Faso: the ASSER MALARIA pilot study protocol.
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Tahita MC, Sondo P, Kabore B, Ilboudo H, Rouamba T, Sanou H, Ouédraogo K, Compaoré A, Lompo P, Ouedraogo F, Sawadogo S, Derra K, Sawadogo YE, Somé AM, Nana M, Sorgho H, Traore-Coulibaly M, Bassat Q, and Tinto H
- Abstract
Background: Malaria infection during pregnancy (MIP) is not only deleterious to the woman, but it also puts her fetus at increased risk of adverse outcomes, such as preterm delivery, low birth weight, and intrauterine growth retardation. Additionally, all-cause mortality during the first year of life in babies born to women with malaria during pregnancy is also increased. Many interventions such as IPTp-SP and long-lasting insecticidal nets have proven to be efficient at reducing malaria in pregnancy burden but adherence to recommended policies remains poor. In sub-Saharan Africa, malaria in pregnancy is often asymptomatic and many malaria infections may be missed due to the inadequate performance of the current rapid diagnostic test to detect low-level parasitemias. Therefore, additional strategies such as intermittent screening with ultrasensitive rapid diagnostic tests and treatment with an effective artemisinin-based combination therapy in addition to IPTp-SP could reduce placental malaria, peripheral malaria infection at delivery, and low birth weight., Methods: This pilot 2-group randomized open trial with a nested qualitative social behavioral will be carried out in Nanoro district in which 340 pregnant women will be recruited. Pregnant women will be randomized into two groups and followed on a monthly basis until delivery. In the intervention group, monthly screening using ultrasensitive rapid diagnostic tests and treatment of those found to be infected with dihydroartemisinin-piperaquine will be performed. In addition, a reminder will be sent to increase the uptake of IPTp-SP doses per woman. During scheduled and unscheduled visits, malaria infection, hemoglobin level, and other clinical outcomes will be assessed and compared by the group. The primary feasibility outcome will evaluate the study site's capacity to enroll participants and the women's perception and acceptability of the intervention. The primary clinical outcome will be the prevalence of placental malaria at delivery., Discussion: The present protocol aims to evaluate the feasibility on a large-scale and also to demonstrate the impact and the operational feasibility of additional screening with ultrasensitive rapid diagnostic tests and treatment with DHA-PQ on placental malaria, low birth weight, and peripheral malaria infection at delivery in a high-burden setting in Burkina Faso., Trial Registration: ClinicalTrials.gov , ID: NCT04147546 (14 October 2019)., (© 2022. The Author(s).)
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- 2022
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31. Letters to the Editor.
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Larsen M and Ouedraogo F
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- 2022
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32. Reactive Arthritis Post-SARS-CoV-2.
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Ouedraogo F, Navara R, Thapa R, and Patel KG
- Abstract
Reactive arthritis (ReA) following bacterial infection from the urogenital and gastrointestinal tract is widely described but is not typical post-viral infections. This report presents the second case of ReA after severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection in the United States. A 45-year-old black male with chronic low back pain was hospitalized for 45 days with coronavirus disease 2019 (COVID-19), complicated due to the development of multiorgan failure managed with intubation, extracorporeal membrane oxygenation, and hemodialysis. He was subsequently discharged to an acute rehabilitation facility where he complained of new-onset pain in his shoulders, left elbow, and left knee three weeks after a negative SARS-CoV-2 test. He was readmitted from his acute rehabilitation facility due to recurrent fever and the development of a swollen, warm left knee. Laboratory studies at readmission showed elevated inflammatory markers, negative extensive infectious disease workup, and aseptic inflammatory left knee synovial fluid without crystals. Testing returned negative for most common antibodies seen in immune-mediated arthritides (e.g., rheumatoid arthritis, systemic lupus erythematosus), as well as for common respiratory and gastrointestinal tract pathogens responsible for viral arthritis. The multidisciplinary inpatient medical team deemed the clinical presentation and laboratory findings most consistent with ReA. The patient received a course of oral corticosteroids, followed by a second course due to the recurrence of symptoms weeks after initial treatment and recovery. The current body of medical literature on SARS-CoV-2 pathophysiology supports plausible mechanisms on how this infection may induce ReA. Such a scenario should be considered in the differential of COVID-19-recovered patients presenting with polyarthritis as prompt steroid treatment may help patient recovery., Competing Interests: The authors have declared that no competing interests exist., (Copyright © 2021, Ouedraogo et al.)
- Published
- 2021
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33. Efficacy of a low-dose candidate malaria vaccine, R21 in adjuvant Matrix-M, with seasonal administration to children in Burkina Faso: a randomised controlled trial.
- Author
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Datoo MS, Natama MH, Somé A, Traoré O, Rouamba T, Bellamy D, Yameogo P, Valia D, Tegneri M, Ouedraogo F, Soma R, Sawadogo S, Sorgho F, Derra K, Rouamba E, Orindi B, Ramos Lopez F, Flaxman A, Cappuccini F, Kailath R, Elias S, Mukhopadhyay E, Noe A, Cairns M, Lawrie A, Roberts R, Valéa I, Sorgho H, Williams N, Glenn G, Fries L, Reimer J, Ewer KJ, Shaligram U, Hill AVS, and Tinto H
- Subjects
- Adjuvants, Immunologic administration & dosage, Burkina Faso, Double-Blind Method, Female, Hepatitis B Surface Antigens, Humans, Infant, Malaria, Falciparum prevention & control, Male, Nanoparticles administration & dosage, Proportional Hazards Models, Saponins administration & dosage, Treatment Outcome, Antibodies, Protozoan immunology, Immunogenicity, Vaccine, Malaria prevention & control, Malaria Vaccines therapeutic use, Protozoan Proteins immunology, Vaccines, Virus-Like Particle therapeutic use
- Abstract
Background: Stalled progress in controlling Plasmodium falciparum malaria highlights the need for an effective and deployable vaccine. RTS,S/AS01, the most effective malaria vaccine candidate to date, demonstrated 56% efficacy over 12 months in African children. We therefore assessed a new candidate vaccine for safety and efficacy., Methods: In this double-blind, randomised, controlled, phase 2b trial, the low-dose circumsporozoite protein-based vaccine R21, with two different doses of adjuvant Matrix-M (MM), was given to children aged 5-17 months in Nanoro, Burkina Faso-a highly seasonal malaria transmission setting. Three vaccinations were administered at 4-week intervals before the malaria season, with a fourth dose 1 year later. All vaccines were administered intramuscularly into the thigh. Group 1 received 5 μg R21 plus 25 μg MM, group 2 received 5 μg R21 plus 50 μg MM, and group 3, the control group, received rabies vaccinations. Children were randomly assigned (1:1:1) to groups 1-3. An independent statistician generated a random allocation list, using block randomisation with variable block sizes, which was used to assign participants. Participants, their families, and the local study team were all masked to group allocation. Only the pharmacists preparing the vaccine were unmasked to group allocation. Vaccine safety, immunogenicity, and efficacy were evaluated over 1 year. The primary objective assessed protective efficacy of R21 plus MM (R21/MM) from 14 days after the third vaccination to 6 months. Primary analyses of vaccine efficacy were based on a modified intention-to-treat population, which included all participants who received three vaccinations, allowing for inclusion of participants who received the wrong vaccine at any timepoint. This trial is registered with ClinicalTrials.gov, NCT03896724., Findings: From May 7 to June 13, 2019, 498 children aged 5-17 months were screened, and 48 were excluded. 450 children were enrolled and received at least one vaccination. 150 children were allocated to group 1, 150 children were allocated to group 2, and 150 children were allocated to group 3. The final vaccination of the primary series was administered on Aug 7, 2019. R21/MM had a favourable safety profile and was well tolerated. The majority of adverse events were mild, with the most common event being fever. None of the seven serious adverse events were attributed to the vaccine. At the 6-month primary efficacy analysis, 43 (29%) of 146 participants in group 1, 38 (26%) of 146 participants in group 2, and 105 (71%) of 147 participants in group 3 developed clinical malaria. Vaccine efficacy was 74% (95% CI 63-82) in group 1 and 77% (67-84) in group 2 at 6 months. At 1 year, vaccine efficacy remained high, at 77% (67-84) in group 1. Participants vaccinated with R21/MM showed high titres of malaria-specific anti-Asn-Ala-Asn-Pro (NANP) antibodies 28 days after the third vaccination, which were almost doubled with the higher adjuvant dose. Titres waned but were boosted to levels similar to peak titres after the primary series of vaccinations after a fourth dose administered 1 year later., Interpretation: R21/MM appears safe and very immunogenic in African children, and shows promising high-level efficacy., Funding: The European & Developing Countries Clinical Trials Partnership, Wellcome Trust, and National Institute for Health Research Oxford Biomedical Research Centre., Competing Interests: Declaration of interests AVSH and KJE are named as coinventors on patent applications related to R21. GG, LF, and JR are employees of Novavax, developers of the MM adjuvant, and US is an employee of the Serum Institute of India, codeveloper of the R21/MM vaccine. The other authors declare no competing interests., (Copyright © 2021 The Author(s). Published by Elsevier Ltd. This is an Open Access article under the CC BY 4.0 license. Published by Elsevier Ltd.. All rights reserved.)
- Published
- 2021
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34. Is deployement of diagnostic test alone enough? Comprehensive package of interventions to strengthen TB laboratory network: three years of experience in Burkina Faso.
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Alagna R, Combary A, Tagliani E, Sawadogo LT, Saouadogo T, Diandé S, Ouedraogo F, and Cirillo DM
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- Antibiotics, Antitubercular pharmacology, Antibiotics, Antitubercular therapeutic use, Burkina Faso, Humans, International Cooperation, Microbial Sensitivity Tests, Mycobacterium tuberculosis drug effects, Reagent Kits, Diagnostic, Recurrence, Rifampin pharmacology, Tuberculosis drug therapy, Tuberculosis microbiology, Tuberculosis, Multidrug-Resistant diagnosis, Tuberculosis, Multidrug-Resistant drug therapy, Tuberculosis, Multidrug-Resistant microbiology, Laboratories standards, Tuberculosis diagnosis
- Abstract
Backgrounds: The laboratory plays a critical role in tuberculosis (TB) control by providing testing for diagnosis, treatment monitoring, and surveillance at each level of the health care system. Weak accessibility to TB diagnosric services still represents a big concern in many limited resources' countries. Here we report the experience of Burkina Faso in implementing a comprehensive intervention packages to strengthen TB laboratory capacity and diagnostic accessibility., Methods: The intervention lasted from October 2016 to December 2018 and focused on two main areas: i) development of strategic documents and policies; ii) implementation of TB diagnostic technology. National TB laboratory data were collected between 2016 and 2018 and evaluated according to five programmatic TB laboratory indicators: i) Percentage of notified new and relapse TB cases with bacteriological confirmation; ii) Percentage of notified new and relapse TB cases tested by Xpert MTB/RIF; iii) Percentage of notified, bacteriologically confirmed TB cases with a drug susceptibility testing (DST) result for rifampin; iv) Percentage of notified MDR-TB cases on the estimated number of MDR-TB cases; v) The ration between the number of smear microscopy and Xpert MTB/RIF tests. We compared these indicators between a 1 year (2016-2017) and 2 years (2016-2018) timeframe., Results: From 2016 to 2018, the percentage of bacteriologically confirmed cases increased from 67 to 71%. The percentage of new and relapse TB cases notified tested by Xpert MTB/RIF increased from 18% in 2016 to 46% in 2018 and the percentage of bacteriologically confirmed cases with an available DST result for rifampicin increased from 27% in 2016 to 66% in 2018.. The percentage of notified MDR-TB cases on the estimated number of MDR-TB cases in 2018 increased from 43% in 2016 to 78% in 2018. In 2018, the ratio between the number of smear microscopy and Xpert MTB/RIF tests decreased from 53% in 2016 to 21% in 2018., Conclusion: We demonstrated that the implementation of a comprehensive package of laboratory strengthening interventions led to a significant improvement of all indicators. External technical assistance played a key role in speeding up the TB laboratory system improvement process.
- Published
- 2021
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35. Online procurement of pet supplies and willingness to pay for veterinary telemedicine.
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Widmar NO, Bir C, Slipchenko N, Wolf C, Hansen C, and Ouedraogo F
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- Animal Feed statistics & numerical data, Animals, Cats, Dogs, Online Systems, Pets, Veterinary Medicine classification, Animal Feed economics, Telemedicine economics, Veterinary Medicine economics
- Abstract
Changing consumer shopping behaviors, and specifically the shift towards online procurement of goods and services, have altered the retail landscape of nearly all goods, including pet products and services. Whilst it is known and commonly discussed that less retail business for products and medications is being conducted in clinics than in the past, it is not well documented where that commerce is now taking place, and by what customer segments. For cats, dogs, and other pets, specialty food and food in general was purchased by a high percentage of respondents at the physical store. Sixteen-percent of dog owners, 17 % of cat owners and 14 % of other animal owners purchased prescription food at the veterinarian. Ten percent of dog owners, 10 % of cat owners, and 9 % of other animal owners purchased prescription food from the physical store. A high percentage of cat and dog owners purchased flea and tick preventative, heartworm preventative and prescription medications at the veterinarian, followed by the physical store. Using a choice experiment, both dog and cat owners were willing-to-pay a statistically significant positive amount for having their veterinarian, or a veterinarian in their community (who was not their veterinarian) on the veterinary telemedicine call or video when compared to a veterinarian from outside the community. In relation to the willingness to pay (WTP) for a telemedicine veterinary consultation with a veterinarian outside of the pet owners' community, dog owners were willing to pay $38.04 more for a telemedicine veterinary consultation with their regular veterinarian, and $13.38 more for a telemedicine veterinary consultation with a veterinarian in the dog owners' community. Cat owners had a WTP of $38.12 per call or visit for having their veterinarian as the consultant which was statistically higher than their WTP for a veterinarian in their community, $12.74 when compared to a veterinarian outside their community. When comparing the mean price adjusted WTP between cat and dog owners, there were not any statistically significant differences found. Quantifying pet owner willingness to pay for commonly discussed attributes of telemedicine, such as whether a local veterinarian is consulted (versus a veterinarian from outside the community), facilitates veterinary practice management decision making as practices adjust product and service offerings to meet the changing consumer demand of pet owners in today's marketplace., Competing Interests: Declaration of Competing Interest The authors declare that they have no known competing interest., (Copyright © 2020 Elsevier B.V. All rights reserved.)
- Published
- 2020
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36. Long-term immunogenicity and immune memory response to the hepatitis B antigen in the RTS,S/AS01 E malaria vaccine in African children: a randomized trial.
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Valéa I, Adjei S, Usuf E, Traore O, Ansong D, Tinto H, Owusu Boateng H, Some AM, Buabeng P, Vekemans J, Kotey A, Vandoolaeghe P, Cullinane M, Traskine M, Ouedraogo F, Sambian D, Lievens M, Tahita MC, Jongert E, Lompo P, Idriss A, Borys D, Ouedraogo S, Prempeh F, Schuerman L, Sorgho H, and Agbenyega T
- Subjects
- Child, Diphtheria-Tetanus-Pertussis Vaccine, Hepatitis B Vaccines, Humans, Immunization, Secondary, Immunogenicity, Vaccine, Immunologic Memory, Infant, Poliovirus Vaccine, Inactivated, Vaccines, Combined, Diphtheria-Tetanus-acellular Pertussis Vaccines, Haemophilus Vaccines, Hepatitis B, Malaria Vaccines
- Abstract
RTS,S/AS01
E malaria vaccine contains the hepatitis B virus surface antigen and may thus serve as a potential hepatitis B vaccine. To evaluate the impact of RTS,S/AS01E when implemented in the Expanded Program of Immunization, infants 8-12 weeks old were randomized to receive either RTS,S/AS01E or a licensed hepatitis B control vaccine (HepB), both co-administered with various combinations of the following childhood vaccines: diphtheria-tetanus-acellular pertussis- Haemophilus influenzae type b, trivalent oral poliovirus, pneumococcal non-typeable Haemophilus influenzae protein D conjugate and human rotavirus vaccine. Long-term persistence of antibodies against the circumsporozoite (CS) protein and hepatitis B surface antigen (HBsAg) were assessed, together with the immune memory response to the HB antigen following a booster dose of HepB vaccine. Subgroups receiving RTS,S or the HepB control vaccine were pooled into RTS,S groups and HepB groups, respectively. One month post-HepB booster vaccination, 100% of participants in the RTS,S groups and 98.3% in the control groups had anti-HBs antibody concentrations ≥10 mIU/mL with the geometric mean concentrations (GMCs) at 46634.7 mIU/mL (95% CI: 40561.3; 53617.6) and 9258.2 mIU/mL (95% CI: 6925.3; 12377.0), respectively. Forty-eight months post-primary vaccination anti-CS antibody GMCs ranged from 2.3 EU/mL to 2.7 EU/mL in the RTS,S groups compared to 1.1 EU/mL in the control groups. Hepatitis B priming with the RTS,S/AS01E vaccine was effective and resulted in a memory response to HBsAg as shown by the robust booster response following an additional dose of HepB vaccine. RTS,S/AS01E when co-administered with PHiD-CV, HRV and other childhood vaccines, had an acceptable safety profile.- Published
- 2020
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37. Immune response to the hepatitis B antigen in the RTS,S/AS01 malaria vaccine, and co-administration with pneumococcal conjugate and rotavirus vaccines in African children: A randomized controlled trial.
- Author
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Valéa I, Adjei S, Usuf E, Traore O, Ansong D, Tinto H, Owusu Boateng H, Leach A, Mwinessobaonfou Some A, Buabeng P, Vekemans J, Nana LA, Kotey A, Vandoolaeghe P, Ouedraogo F, Sambian D, Lievens M, Tahita MC, Rettig T, Jongert E, Lompo P, Idriss A, Borys D, Ouedraogo S, Prempeh F, Habib MA, Schuerman L, Sorgho H, and Agbenyega T
- Subjects
- Africa South of the Sahara, Female, Fever epidemiology, Humans, Incidence, Infant, Malaria Vaccines adverse effects, Malaria Vaccines immunology, Male, Pain epidemiology, Pneumococcal Vaccines adverse effects, Pneumococcal Vaccines immunology, Rotavirus Vaccines adverse effects, Rotavirus Vaccines immunology, Vaccines, Attenuated administration & dosage, Vaccines, Attenuated adverse effects, Vaccines, Attenuated immunology, Vaccines, Synthetic adverse effects, Vaccines, Synthetic immunology, Drug-Related Side Effects and Adverse Reactions epidemiology, Immunization Schedule, Immunogenicity, Vaccine, Malaria Vaccines administration & dosage, Pneumococcal Vaccines administration & dosage, Rotavirus Vaccines administration & dosage, Vaccines, Synthetic administration & dosage
- Abstract
The RTS,S/AS01 malaria vaccine (Mosquirix) reduces the incidence of Plasmodium falciparum malaria and is intended for routine administration to infants in Sub-Saharan Africa. We evaluated the immunogenicity and safety of 10-valent pneumococcal non-typeable Haemophilus influenzae protein D conjugate vaccine (PHiD-CV; Synflorix) and human rotavirus vaccine (HRV; Rotarix) when co-administered with RTS,S/AS01 ( www.clinicaltrials.gov NCT01345240) in African infants. 705 healthy infants aged 8-12 weeks were randomized to receive three doses of either RTS,S/AS01 or licensed hepatitis B (HBV; Engerix B) vaccine (control) co-administered with diphtheria-tetanus-acellular pertussis-Haemophilus influenzae type-b-conjugate vaccine (DTaP/Hib) and trivalent oral poliovirus vaccine at 8-12-16 weeks of age, because DTaP/Hib was not indicated before 8 weeks of age. The vaccination schedule can still be considered broadly applicable because it was within the age range recommended for EPI vaccination. PHiD-CV or HRV were either administered together with the study vaccines, or after a 2-week interval. Booster doses of PHiD-CV and DTaP/Hib were administered at age 18 months. Non-inferiority of anti-HBV surface antigen antibody seroprotection rates following co-administration with RTS,S/AS01 was demonstrated compared to the control group (primary objective). Pre-specified non-inferiority criteria were reached for PHiD-CV (for 9/10 vaccine serotypes), HRV, and aP antigens co-administered with RTS,S/AS01 as compared to HBV co-administration (secondary objectives). RTS,S/AS01 induced a response to circumsporozoite protein in all groups. Pain and low grade fever were reported more frequently in the PHiD-CV group co-administered with RTS,S/AS01 than PHiD-CV co-administered with HBV. No serious adverse events were considered to be vaccine-related. RTS,S/AS01 co-administered with pediatric vaccines had an acceptable safety profile. Immune responses to RTS,S/AS01 and to co-administered PHiD-CV, pertussis antigens and HRV were satisfactory.
- Published
- 2018
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38. Vaccination coverage among social and healthcare workers in ten countries of Samu-social international sites.
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Marshall E, Salmon D, Bousfiha N, Togola Y, Ouedraogo F, Santantonio M, Dieng CK, Tartière S, and Emmanuelli X
- Subjects
- Adult, Cross-Sectional Studies, Female, Health Personnel statistics & numerical data, Humans, Immunization Programs statistics & numerical data, Immunization Schedule, Male, Social Workers statistics & numerical data, Surveys and Questionnaires, Vaccination statistics & numerical data, Vaccination Coverage statistics & numerical data
- Abstract
Background: We aim to determine the vaccination coverage of social and healthcare workers in International sites of Samusocial, providing emergency care to homeless people, and to assess factors associated with having received necessary doses at adulthood., Methods: Data on immunization coverage of social and healthcare workers were provided by a cross-sectional survey, conducted from February to April 2015 among 252 Samusocial workers in 10 countries. Vaccination status and characteristics of participants were collected through a self-administered questionnaire. Prevalence rate ratio (PRR) of vaccination status was calculated using Poisson regression models., Results: Among 252 Samusocial social and health workers who felt a questionnaire, median age was 39years, 42.1% were female, 88.9% were in contact with homeless beneficiaries (19.1% health workers). Overall, 90.1% of Samusocial staff felt adult vaccinations was useful and 70.2% wished to receive booster doses in future. Vaccination coverage at adulthood was satisfactory for diphtheria and poliomyelitis (96%), but low for influenza (20.8%), meningococcus (50.5%), hepatitis B (56.3%), yellow fever (58.1%), measles (81.3%) and pertussis (90.7%). The main reasons for not having received vaccination booster doses were forgetting the dates of booster doses (38.4%) and not having received the information (13.5%). In adjusted analysis, prevalence of up-to-date for vaccination schedule was 35% higher among health workers than among social workers (aPRR=1.35, 95%CI: 1.01-1.82, P=0.05) and was 56% higher among workers who had a documentary evidence of vaccination than in those who did not (aPRR=1.56, 95%CI: 1.19-2.02, P=0.001)., Conclusions: The Samusocial International workers vaccine coverage at adulthood was insufficient and disparate by region. It is necessary to strengthen the outreach of this staff and increase immunization policy for hepatitis B, diphtheria, tetanus, and measles, as well as for yellow fever, rabies and meningococcal ACYW135 vaccines in at risk regions., (Copyright © 2017 Elsevier Ltd. All rights reserved.)
- Published
- 2017
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39. [Bessef Hogen's disease, or exostosis disease, with spinal cord compression: a case in the service of the Paediatric CHU Ouedraogo, Ouagadougou, BF].
- Author
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Dao F, Yonaba C, Diallo O, Traore O, Traore A, Ayereoue J, Zoungrana C, Ouedraogo F, Bouda C, Zombre V, and Kam L
- Abstract
CA, 14 old years, female, born last uterine siblings of 9 children, 4 died of various causes, was admitted in the pediatric service of CHU-YO for functional impairment of the lower limbs. Physical examination revealed swelling and deformation harsh, uneven surfaces, the circumferential upper and lower limbs and lumbar spine associated with spastic paraplegia. Sphincter disturbances accompany this clinical picture. The radiographic bone marrow hypertrophy individually with images of exostosis at the epiphyses. Multiple exostosis or BESSEF Hogen's disease is rare and has a reserve functional prognosis because of outcome of low spinal cord compression and vascular compression. We felt it appropriate to bring this case discovered during our clinical practice because of its rarity and the risk of malignant degeneration., (Le comitée de rédaction se réserve le droit de revoyer aux auteurs avant toute soumission à l'avis des lecteurs les manuscrits qui ne seraient pas conformes à ces modalités de présentation. En outre il leur conseille de sonserver un examplaire du manuscrit, des figures et des tableaux.)
- Published
- 2013
40. Mycobacterium tuberculosis drug-resistance in previously treated patients in Ouagadougou, Burkina Faso.
- Author
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Sangare L, Diande S, Kouanda S, Dingtoumda BI, Mourfou A, Ouedraogo F, Sawadogo I, Nebie B, Gueye A, Sawadogo LT, and Traore AS
- Subjects
- Adolescent, Adult, Age Distribution, Aged, Burkina Faso epidemiology, Cross-Sectional Studies, Female, Humans, Male, Microbial Sensitivity Tests, Middle Aged, Mycobacterium tuberculosis isolation & purification, Prevalence, Sputum microbiology, Treatment Outcome, Tuberculosis, Multidrug-Resistant epidemiology, Tuberculosis, Multidrug-Resistant microbiology, Tuberculosis, Pulmonary epidemiology, Tuberculosis, Pulmonary microbiology, Young Adult, Antitubercular Agents therapeutic use, Drug Resistance, Multiple, Bacterial, Mycobacterium tuberculosis drug effects, Tuberculosis, Multidrug-Resistant drug therapy, Tuberculosis, Pulmonary drug therapy
- Abstract
Background: Tuberculosis drug-resistance becomes common in sub-Saharan Africa; however, very few data are available in Burkina Faso. The aim of this study is to assess the acquired resistance of Mycobacterium tuberculosis complex strains identified in TB patients to four first-line drugs in Ouagadougou., Methods: One hundred and ten (110) pulmonary tuberculosis patients with acid-fast bacilli-positive sputum and in situation of failure, relapse, or treatment abandonment were included in the study. Ninety six strains, including 92 (95.8%) M. tuberculosis and 4 (4.2%) M. africanum, were isolated from the sputum samples of these patients. Their drug susceptibility testing was performed using the proportion method. The first-line drugs tested were isoniazid (INH), streptomycin (STR), ethambutol (EMB), and rifampicin (RIF)., Results: The overall drug-resistance rate of M. tuberculosis was 67.4% (n=60), including 3.4% to one drug, 18% to two, 10.1% to three, and 35.9% to four drugs. The resistance to INH, RIF, EMB, and STR were 67.4%, 51.7%, 50.6%, and 44.9%, respectively. Two strains of M. africanum were resistant to all drugs. Forty-six (51.7%) strains were multidrug-resistant (resistant to at least INH and RIF)., Conclusions: In previously treated patients, the level of resistance of M. tuberculosis complex to commonly used anti-tuberculosis drugs is very high in Ouagadougou. Our results showed that multidrug-resistant tuberculosis could be a public health problem in Burkina Faso.
- Published
- 2010
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41. [Association of pulmonary tuberculosis and human immunodeficency virus infection (HIV) infection in Ouagadougou, Burkina Faso: diagnositic features, laboratory findings and statistical data].
- Author
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Diande S, Sangare L, Ouattara TC, Sawadogo TL, Ouedraogo F, and Traore AS
- Subjects
- Adult, Burkina Faso, Diagnosis, Differential, Female, Humans, Incidence, Male, Middle Aged, Tuberculosis, Pulmonary epidemiology, HIV Infections complications, Tuberculosis, Pulmonary diagnosis, Tuberculosis, Pulmonary pathology
- Published
- 2005
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