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Poverty and Arbovirus Outbreaks: When Chikungunya Virus Hits More Precarious Populations Than Dengue Virus in French Guiana.

Abstract

Background

Since 2013, 3 successive arbovirus outbreaks, dengue (DENV), chikungunya (CHIKV), and Zika virus, have occurred in French Guiana (FG). The primary objective of this study was to describe the socioeconomic indicators of the first patients infected with CHIKV during the outbreak of 2014. The secondary objective was to compare those patients with patient infected by DENV and with the local population.

Methods

A monocentric, retrospective, case-control study was conducted in Cayenne hospital in FG comparing a group of patients infected with CHIKV in 2014 with a group infected with DENV in 2013. Children aged less than 15 years and pregnant women were excluded.

Results

A total of 168 CHIKV patients were compared with 168 DENV patients. Factors associated with CHIKV were living in poor neighborhoods (82% vs 44%; odds ratio [OR], 5.81; 95% confidence interval [CI], 3.35-10.2), having a precarious status (54% vs 33%; OR, 2.37; 95% CI, 1.49-3.78), and being born abroad (70% vs 35%; OR, 4.35; 95% CI, 2.69-7.06).

Conclusions

The present results suggest that early in the epidemic, the populations most at risk for CHIKV infection were the most socially vulnerable populations in the poorest neighborhoods, whereas DENV appeared to have affected a richer population and richer areas.

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  • Authors+Show Affiliations

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    Tropical and Infectious Diseases Department, Centre Hospitalier Andrée Rosemon, Cayenne, French Guiana, France. Centre d'Investigation Clinique Antilles Guyane, Cayenne, French Guiana, France.

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    Centre d'Investigation Clinique Antilles Guyane, Cayenne, French Guiana, France. Equipe EA 3593, Ecosystèmes Amazoniens et Pathologie Tropicale, Université de Guyane, Cayenne, French Guiana, France.

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    Emergency Department, Centre Hospitalier Andrée Rosemon, Cayenne, French Guiana, France. Department of General Medicine, University of the French West Indies, France.

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    Institut National de la Statistique et des Études Économiques, INSEE Direction Générale, Paris, France.

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    Emergency Department, Centre Hospitalier Andrée Rosemon, Cayenne, French Guiana, France. Equipe EA 3593, Ecosystèmes Amazoniens et Pathologie Tropicale, Université de Guyane, Cayenne, French Guiana, France.

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    Tropical and Infectious Diseases Department, Centre Hospitalier Andrée Rosemon, Cayenne, French Guiana, France. Equipe EA 3593, Ecosystèmes Amazoniens et Pathologie Tropicale, Université de Guyane, Cayenne, French Guiana, France.

    Tropical and Infectious Diseases Department, Centre Hospitalier Andrée Rosemon, Cayenne, French Guiana, France. Equipe EA 3593, Ecosystèmes Amazoniens et Pathologie Tropicale, Université de Guyane, Cayenne, French Guiana, France.

    Source

    Pub Type(s)

    Journal Article

    Language

    eng

    PubMed ID

    29308403