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SARS-CoV-2 seroprevalence and living conditions in Bamako (Mali): a cross-sectional multistage household survey after the first epidemic wave, 2020

dc.rights.licenseopenen_US
dc.contributor.authorCISSOKO, Mady
dc.contributor.authorLANDIER, Jordi
dc.contributor.authorKOURIBA, Bourema
dc.contributor.authorSANGARE, Abdoul Karim
dc.contributor.authorKATILÉ, Abdoulaye
dc.contributor.authorDJIMDE, Abdoulaye A
dc.contributor.authorBERTHÉ, Ibrahima
dc.contributor.authorTRAORE, Siriman
dc.contributor.authorTHERA, Ismaila
dc.contributor.authorHADIATA, Maiga
dc.contributor.authorSOGODOGO, Elisabeth
dc.contributor.authorCOULIBALY, Karyn
dc.contributor.authorGUINDO, Abdoulaye
dc.contributor.authorDEMBELE, Ousmane
dc.contributor.authorSANOGO, Souleymane
dc.contributor.authorDOUMBIA, Zoumana
dc.contributor.authorDARA, Charles
hal.structure.identifierBordeaux population health [BPH]
hal.structure.identifierGlobal Health in the Global South [GHiGS]
dc.contributor.authorALTMANN, Mathias
dc.contributor.authorBONNET, Emmanuel
dc.contributor.authorBALIQUE, Hubert
dc.contributor.authorSAGAON-TEYSSIER, Luis
dc.contributor.authorVIDAL, Laurent
dc.contributor.authorSAGARA, Issaka
dc.contributor.authorBENDIANE, Marc-Karim
dc.contributor.authorGAUDART, Jean
dc.date.accessioned2023-11-13T14:00:07Z
dc.date.available2023-11-13T14:00:07Z
dc.date.issued2023-04-20
dc.identifier.issn2044-6055en_US
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/184740
dc.description.abstractEnIn low-income settings with limited access to diagnosis, COVID-19 information is scarce. In September 2020, after the first COVID-19 wave, Mali reported 3086 confirmed cases and 130 deaths. Most reports originated from Bamako, with 1532 cases and 81 deaths (2.42 million inhabitants). This observed prevalence of 0.06% appeared very low. Our objective was to estimate SARS-CoV-2 infection among inhabitants of Bamako, after the first epidemic wave. We assessed demographic, social and living conditions, health behaviours and knowledges associated with SARS-CoV-2 seropositivity. We conducted a cross-sectional multistage household survey during September 2020, in three neighbourhoods of the commune VI (Bamako), where 30% of the cases were reported. We recruited 1526 inhabitants in 3 areas, that is, 306 households, and 1327 serological results (≥1 years), 220 household questionnaires and collected answers for 962 participants (≥12 years). We measured serological status, detecting SARS-CoV-2 spike protein antibodies in blood sampled. We documented housing conditions and individual health behaviours through questionnaires among participants. We estimated the number of SARS-CoV-2 infections and deaths in the population of Bamako using the age and sex distributions. The prevalence of SARS-CoV-2 seropositivity was 16.4% (95% CI 15.1% to 19.1%) after adjusting on the population structure. This suggested that ~400 000 cases and ~2000 deaths could have occurred of which only 0.4% of cases and 5% of deaths were officially reported. Questionnaires analyses suggested strong agreement with washing hands but lower acceptability of movement restrictions (lockdown/curfew), and mask wearing. The first wave of SARS-CoV-2 spread broadly in Bamako. Expected fatalities remained limited largely due to the population age structure and the low prevalence of comorbidities. Improving diagnostic capacities to encourage testing and preventive behaviours, and avoiding the spread of false information remain key pillars, regardless of the developed or developing setting. This study was registered in the registry of the ethics committee of the Faculty of Medicine and Odonto-Stomatology and the Faculty of Pharmacy, Bamako, Mali, under the number: 2020/162/CA/FMOS/FAPH.
dc.language.isoENen_US
dc.rightsAttribution-NonCommercial 3.0 United States*
dc.rights.urihttp://creativecommons.org/licenses/by-nc/3.0/us/*
dc.subject.enHumans
dc.subject.enSARS-CoV-2
dc.subject.enCOVID-19
dc.subject.enSeroepidemiologic Studies
dc.subject.enCross-Sectional Studies
dc.subject.enMali
dc.subject.enSocial Conditions
dc.subject.enCommunicable Disease Control
dc.subject.enAntibodies
dc.subject.enViral
dc.title.enSARS-CoV-2 seroprevalence and living conditions in Bamako (Mali): a cross-sectional multistage household survey after the first epidemic wave, 2020
dc.title.alternativeBMJ Openen_US
dc.typeArticle de revueen_US
dc.identifier.doi10.1136/bmjopen-2022-067124en_US
dc.subject.halSciences du Vivant [q-bio]/Santé publique et épidémiologieen_US
dc.identifier.pubmed37080622en_US
bordeaux.journalBMJ Openen_US
bordeaux.pagee067124en_US
bordeaux.volume13en_US
bordeaux.hal.laboratoriesBordeaux Population Health Research Center (BPH) - UMR 1219en_US
bordeaux.issue4en_US
bordeaux.institutionUniversité de Bordeauxen_US
bordeaux.institutionINSERMen_US
bordeaux.teamGHIGSen_US
bordeaux.peerReviewedouien_US
bordeaux.inpressnonen_US
bordeaux.identifier.funderIDInstitut de Recherche pour le Développementen_US
bordeaux.import.sourcepubmed
hal.identifierhal-04282559
hal.version1
hal.date.transferred2023-11-13T14:00:12Z
hal.popularnonen_US
hal.audienceInternationaleen_US
hal.exporttrue
workflow.import.sourcepubmed
dc.rights.ccPas de Licence CCen_US
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=BMJ%20Open&rft.date=2023-04-20&rft.volume=13&rft.issue=4&rft.spage=e067124&rft.epage=e067124&rft.eissn=2044-6055&rft.issn=2044-6055&rft.au=CISSOKO,%20Mady&LANDIER,%20Jordi&KOURIBA,%20Bourema&SANGARE,%20Abdoul%20Karim&KATIL%C3%89,%20Abdoulaye&rft.genre=article


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