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. 2017 Dec:65:116-118.
doi: 10.1016/j.ijid.2017.10.009. Epub 2017 Dec 1.

Revising rates of asymptomatic Zika virus infection based on sentinel surveillance data from French Overseas Territories

Lorenzo Subissi  1 , Elise Daudens-Vaysse  2 , Sylvie Cassadou  2 , Martine Ledrans  2 , Priscillia Bompard  3 , Joël Gustave  4 , Maité Aubry  5 , Van-Mai Cao-Lormeau  5 , Henri-Pierre Mallet  6
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Free article

Revising rates of asymptomatic Zika virus infection based on sentinel surveillance data from French Overseas Territories

Lorenzo Subissi et al. Int J Infect Dis. 2017 Dec.
Free article

Abstract

French Polynesia and the French Territories of the Americas (FTAs) have experienced outbreaks of Zika virus (ZIKV) infection. These territories used similar sentinel syndromic surveillance to follow the epidemics. However, the surveillance system only takes into account consulting patients diagnosed with ZIKV disease, while non-consulting cases, as well as asymptomatic cases, are not taken into account. In the French territories under study, the ratio of consulting to non-consulting patients was found to likely be as low as 1/3 to 1/4, and rough estimates of the ZIKV asymptomatic infections indicated a lower rate than previously reported (i.e., not more than half).

Keywords: Asymptomatic infections; Caribbean region; Pacific islands; Sentinel surveillance; Vector-borne infections; Zika virus.

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