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Genomic history of the seventh pandemic of cholera in Africa | Journal Article / Research | MSF Science Portal
Journal Article
|Research

Genomic history of the seventh pandemic of cholera in Africa

Weill FX, Domman D, Njamkepo E, Tarr C, Rauzier J, Fawal N, Keddy KH, Salje H, Moore SM, Mukhopadhyay AK, Bercion R, Lugero FJ, Ngandjio A, Dosso M, Monakhova E, Garin B, Bouchier C, Pazzani C, Mutreja A, Grunow R, Sidikou F, Bonte L, Breurec S, Damian M, Njanpop-Lafourcade BM, Sapriel G, Page AL, Hamze M, Henkens M, Chowdhury G, Mengel M, Koeck JL, Fournier JM, Dougan G, Grimont PAD, Parkhill J, Holt KE, Piarroux R, Ramamurthy T, Quilici ML, Thomson NR
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Abstract
The seventh cholera pandemic has heavily affected Africa, although the origin and continental spread of the disease remain undefined. We used genomic data from 1070 Vibrio cholerae O1 isolates, across 45 African countries and over a 49-year period, to show that past epidemics were attributable to a single expanded lineage. This lineage was introduced at least 11 times since 1970, into two main regions, West Africa and East/Southern Africa, causing epidemics that lasted up to 28 years. The last five introductions into Africa, all from Asia, involved multidrug-resistant sublineages that replaced antibiotic-susceptible sublineages after 2000. This phylogenetic framework describes the periodicity of lineage introduction and the stable routes of cholera spread, which should inform the rational design of control measures for cholera in Africa.

Subject Area

genetics & genomicsoutbreakscholera

Languages

English
DOI
10.1126/science.aad5901
Published Date
10 Nov 2017
PubMed ID
29123067
Journal
Science
Volume | Issue | Pages
Volume 358, Issue 6364, Pages 785-789
Issue Date
2017-11-09
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