@article{fdi:010057175, title = {{C}holera outbreak in {S}enegal in 2005 : was climate a factor ?}, author = {{C}onstantin de {M}agny, {G}uillaume and {T}hiaw, {W}. and {K}umar, {V}. and {M}anga, {N}. {M}. and {D}iop, {B}. {M}. and {G}ueye, {L}. and {K}amara, {M}. and {R}oche, {B}enjamin and {M}urtugudde, {R}. and {C}olwell, {R}. {R}.}, editor = {}, language = {{ENG}}, abstract = {{C}holera is an acute diarrheal illness caused by {V}ibrio cholerae and occurs as widespread epidemics in {A}frica. {I}n 2005, there were 31,719 cholera cases, with 458 deaths in the {R}epublic of {S}enegal. {W}e retrospectively investigated the climate origin of the devastating floods in mid-{A}ugust 2005, in the {D}akar {R}egion of {S}enegal and the subsequent outbreak of cholera along with the pattern of cholera outbreaks in three other regions of that country. {W}e compared rainfall patterns between 2002 and 2005 and the relationship between the sea surface temperature ({SST}) gradient in the tropical {A}tlantic {O}cean and precipitation over {S}enegal for 2005. {R}esults showed a specific pattern of rainfall throughout the {D}akar region during {A}ugust, 2005, and the associated rainfall anomaly coincided with an exacerbation of the cholera epidemic. {C}omparison of rainfall and epidemiological patterns revealed that the temporal dynamics of precipitation, which was abrupt and heavy, was presumably the determining factor. {A}nalysis of the {SST} gradient showed that the {A}tlantic {O}cean {SST} variability in 2005 differed from that of 2002 to 2004, a result of a prominent {A}tlantic meridional mode. {T}he influence of this intense precipitation on cholera transmission over a densely populated and crowded region was detectable for both {D}akar and {T}hies, {S}enegal. {T}hus, high resolution rainfall forecasts at subseasonal time scales should provide a way forward for an early warning system in {A}frica for cholera and, thereby, trigger epidemic preparedness. {C}learly, attention must be paid to both natural and human induced environmental factors to devise appropriate action to prevent cholera and other waterborne disease epidemics in the region.}, keywords = {}, booktitle = {}, journal = {{P}los {O}ne}, volume = {7}, numero = {8}, pages = {e44577}, ISSN = {1932-6203}, year = {2012}, DOI = {10.1371/journal.pone.0044577}, URL = {https://www.documentation.ird.fr/hor/fdi:010057175}, }