Predicting Dengue Fever Outbreaks in French Guiana Using Climate Indicators

Adde, Antoine; Roucou, Pascal; Mangeas, Morgan; Ardillon, Vanessa; Desenclos, Jean‐Claude; Rousset, Dominique; Girod, Romain; Briolant, Sébastien; Quénel, Philippe; Flamand, Claude

doi:10.1371/journal.pntd.0004681

Cited by 47 publications

(42 citation statements)

References 43 publications

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“…Moreover, despite the absence of evidence, some studies hypothesized that a link exists between climatic events such as El Niño and the spread of ZIKV from Brazil to North America [ 106 – 109 ]. El Niño leads to extreme temperatures in northern South America, which might enhance the development of A .…”

Section: Resultsmentioning

confidence: 99%

Zika virus: An updated review of competent or naturally infected mosquitoes

et al. 2017

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Zika virus (ZIKV) is an arthropod-borne virus (arbovirus) that recently caused outbreaks in the Americas. Over the past 60 years, this virus has been observed circulating among African, Asian, and Pacific Island populations, but little attention has been paid by the scientific community until the discovery that large-scale urban ZIKV outbreaks were associated with neurological complications such as microcephaly and several other neurological malformations in fetuses and newborns. This paper is a systematic review intended to list all mosquito species studied for ZIKV infection or for their vector competence. We discuss whether studies on ZIKV vectors have brought enough evidence to formally exclude other mosquitoes than Aedes species (and particularly Aedes aegypti) to be ZIKV vectors. From 1952 to August 15, 2017, ZIKV has been studied in 53 mosquito species, including 6 Anopheles, 26 Aedes, 11 Culex, 2 Lutzia, 3 Coquillettidia, 2 Mansonia, 2 Eretmapodites, and 1 Uranotaenia. Among those, ZIKV was isolated from 16 different Aedes species. The only species other than Aedes genus for which ZIKV was isolated were Anopheles coustani, Anopheles gambiae, Culex perfuscus, and Mansonia uniformis. Vector competence assays were performed on 22 different mosquito species, including 13 Aedes, 7 Culex, and 2 Anopheles species with, as a result, the discovery that A. aegypti and Aedes albopictus were competent for ZIKV, as well as some other Aedes species, and that there was a controversy surrounding Culex quinquefasciatus competence. Although Culex, Anopheles, and most of Aedes species were generally observed to be refractory to ZIKV infection, other potential vectors transmitting ZIKV should be explored.

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Section: Resultsmentioning

confidence: 99%

Zika virus: An updated review of competent or naturally infected mosquitoes

et al. 2017

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“…Emerging and reemerging mosquito-borne diseases such as dengue fever, chikungunya, and zika represent a growing public health threat to tropical countries, especially American and Caribbean countries where a great number of large scale epidemics have been documented in recent years. 1,2 In French Guiana, where the dengue virus has been responsible for several outbreaks over as many decades, 3–5 a few locally acquired cases of chikungunya were reported in February 2014. 6 Indeed, six biologically confirmed cases and 12 suspected cases were detected in Kourou municipality within a 200-m radius between February 19 and 27, confirming the first localized chain of chikungunya transmission in the American continent.…”

Section: Introductionmentioning

confidence: 99%

The Role of Risk Proximity in the Beliefs and Behaviors Related to Mosquito-Borne Diseases: The Case of Chikungunya in French Guiana

Flamand

Fritzell

Obale

et al. 2017

The American Journal of Tropical Medicine and Hygiene

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Abstract.Human behaviors are increasingly recognized to play a key role in the spread of infectious diseases. Although a set of social and cognitive determinants has been consistently found to affect the adoption of health protective behaviors aiming to control and prevent a variety of infections, little is currently known about the ecological drivers of these behaviors in epidemic settings. In this article, we took advantage of the outbreak of chikungunya, a reemerging mosquito-borne disease, that occurred in French Guiana in 2014–15 to test empirically the assumption proposed by Zielinski-Gutierrez and Hayden that the proximity of the disease and perceptions of the natural environment may considerably shape public response to an emerging health threat. To achieve this, a cross-sectional survey was conducted among high school students of the region (N = 1462) at an early stage of the epidemic. Surprisingly, spatial analysis of the collected data leads to counterintuitive results as the participants who lived in the most affected area expressed less concern about the disease and practiced preventive behaviors less frequently than did other participants. These paradoxical results may be attributed to the possible activation of risk denial processes which have previously been observed in the risk perception literature, and described by several social and psychological defensiveness theories.

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“…The 4 serotypes of DENV circulate in FG in endemic-epidemic form. In the past 10 years, there has been an increase in the number of DENV outbreaks and hospitalized cases [ 3 , 4 ]. Thus far, A aegypti mosquitoes have been the sole vector implicated in these outbreaks, and A albopictus have not been actually reported in FG [ 5 ].…”

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confidence: 99%

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

Bonifay

Douine

Bonnefoy

et al. 2017

Open Forum Infectious Diseases

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BackgroundSince 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.MethodsA 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.ResultsA 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).ConclusionsThe 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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Predicting Dengue Fever Outbreaks in French Guiana Using Climate Indicators

Cited by 47 publications

References 43 publications

Zika virus: An updated review of competent or naturally infected mosquitoes

Zika virus: An updated review of competent or naturally infected mosquitoes

The Role of Risk Proximity in the Beliefs and Behaviors Related to Mosquito-Borne Diseases: The Case of Chikungunya in French Guiana

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

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