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Molecular epidemiology of antimicrobial resistance in central africa: A systematic review

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Dikoumba, Annicet-Clotaire | Onanga, Richard | Mangouka, Laurette | Boundenga, Larson | Ngoungou, Edgard-Brice | Godreuil, Sylvain

Edité par CCSD ; Microbiology Society -

International audience. Background: In Central Africa, it is difficult to tackle antibiotic resistance, because of a lack of data and information on bacterial resistance, due to the low number of studies carried out in the field. To fill this gap, we carried out a systematic review of the various studies, and devised a molecular epidemiology of antimicrobial resistance from humans, animals and the environmental samples.Method: A systematic search of all publications from 2005 to 2020 on bacterial resistance in Central Africa (Gabon, Cameroon, Democratic Republic of Congo, Central African Republic, Chad, Republic of Congo, Equatorial Guinea, São Tomé and Príncipe, Angola) was performed on Pubmed, Google scholar and African Journals Online (AJOL). All circulating resistance genes, prevalence and genetic carriers of these resistances were collected. The study area was limited to the nine countries of Central Africa.Results: A total of 517 studies were identified through a literature search, and 60 studies carried out in eight countries were included. Among all articles included, 43 articles were from humans. Our study revealed not only the circulation of beta-lactamase and carbapenemase genes, but also several other types of resistance genes. To finish, we noticed that some studies reported mobile genetic elements such as integrons, transposons, and plasmids.Conclusion: The scarcity of data poses difficulties in the implementation of effective strategies against antibiotic resistance, which requires a health policy in a ‘One Health’ approach.

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