Population structure of Aedes albopictus from La Réunion Island (Indian Ocean) with respect to susceptibility to a dengue virus

Paupy, Christophe; Girod, Romain; Salvan, M; Rodhain, F; Failloux, Anna‐Bella

doi:10.1046/j.1365-2540.2001.00866.x

Cited by 62 publications

(59 citation statements)

References 26 publications

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“…À la Réunion, il a été démontré que les populations d'Ae. albopictus étaient fortement structurées notamment en fonction de facteurs environnementaux tels que la pluviométrie qui conditionne la disponibilité en eau et, par voie de consé-quence, la dispersion des moustiques et les flux de gènes (Paupy et al, 2001). L'implication d'Ae.…”

Section: Les Vecteursunclassified

“…albopictus originaire du SOOI pour le CHIKV n'avait jusqu'à présent jamais été évaluée, des résul-tats concernant la dengue étaient quant à eux disponibles. Des études ont démontré que des populations vectorielles originaires de la Réunion (Paupy et al, 2001) et de Madagascar (Vazeille et al, 2001) présen-taient une réceptivité orale vis-à-vis de la dengue supé-rieure à celle des populations en provenance d'Asie du Sud-Est (Vazeille et al, 2003). Tout comme pour le CHIKV, des variations de compétence vectorielle sont observées pour les DENV en fonction de l'origine géographique d'Ae.…”

unclassified

“…aegypti et d'Ae. albopictus (Paupy et al, 2001;Failloux et al, 2002). Néanmoins, au laboratoire, Ae.…”

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Aedes albopictus, vecteur des virus du chikungunya et de la dengue à la Réunion : biologie et contrôle

Delatte

Paupy

Dehecq³

et al. 2008

Parasite

187

124

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Summary : AEDES ALBOPICTUS, VECTOR OF CHIKUNGUNYA AND DENGUE VIRUSES IN REUNION ISLAND: BIOLOGY AND CONTROLChikungunya virus (CHIKV) and dengue virus (DENV) are mosquitoborne viruses transmitted by the Aedes genus. Dengue is considered as the most important arbovirus disease throughout the World. Chikungunya, known from epidemics in continental Africa and Asia, has up to now been poorly studied. It has been recently responsible for the severe 2004-2007 epidemic reported in the Indian Ocean (IO), which has caused several serious health and economic problems. This unprecedented epidemic of the IO has shown severe health troubles with morbidity and death associated, which had never been observed before. The two major vectors of those arboviruses in the IO area are Aedes aegypti and Aedes albopictus. The latest is considered as the main vector in most of the islands of the area, especially in Reunion Island. Ae. albopictus showed strong ecological plasticity. Small disposable containers were the principal urban breeding sites, and preferred natural developmental sites were bamboo stumps and rock holes in periurban and gully areas. The virus has been isolated from field collected Ae. albopictus females, and in two out of 500 pools of larvae, demonstrating vertical transmission. Experimental works showed that both Ae. albopictus and Ae. aegypti from west IO islands are efficient vectors of dengue and chikungunya viruses. Since 2006 and all along the epidemic of CHIKV, measures for the control of larvae (temephos then Bacillus thuringiensis) and adults (fenitrothion, then deltamethrine) of Ae. albopictus where applied along with individual and collective actions (by the use of repellents, and removal of breeding sites around houses) in Reunion Island. In order to prevent such epidemics, a preventive plan for arboviruses upsurge is ongoing processed. This plan would allow a quicker response to the threat and adapt it according to the virus and its specific vector. Résumé : Les virus du chikungunya (CHIKV) et de la dengue (DENV) sont transmis par des moustiques du genre

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Section: Les Vecteursunclassified

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Aedes albopictus, vecteur des virus du chikungunya et de la dengue à la Réunion : biologie et contrôle

Delatte

Paupy

Dehecq³

et al. 2008

Parasite

187

124

View full text Add to dashboard Cite

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“…On the other hand, it has been reported that this species is a primary vector of DENV in situations where Ae. aegypti is rare or absent (Paupy et al 2001;Effler et al 2005;Almeida et al 2005). Therefore, in the contemporary, Ae.…”

Section: Introductionmentioning

confidence: 99%

Host-feeding pattern of Aedes aegypti and Aedes albopictus (Diptera: Culicidae) in heterogeneous landscapes of South Andaman, Andaman and Nicobar Islands, India

et al. 2015

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Mosquito foraging behavior is a determinant of host-vector contact and has an impact on the risk of arboviral epidemics. Therefore, blood-feeding patterns is a useful tool for assessing the role in pathogen transmission by vector mosquitoes. Competent vectors of dengue and chikungunya viz. Aedes aegypti and Aedes albopictus are widely prevalent in the Andaman and Nicobar archipelago. Considering the vector potential, medical importance of both these mosquito species and lack of information on host-feeding patterns, blood meal analysis of both these vector mosquitoes was undertaken. Biogents Sentinel traps were used for sampling blooded mosquitoes, for identifying the source of blood meal by agar gel-precipitin test. We identified vertebrate source of 147 and 104 blood meals in Ae. aegypti and Ae. albopictus from heterogeneous landscapes in South Andaman district. Results revealed that Ae. aegypti (88 %) and Ae. albopictus (49 %) fed on human and a small proportion on mammals and fowls, indicative of predominance of anthropophilism. Ae. aegypti predominantly fed on human blood (94.2 %-densely built urban, 89.8 %-low vegetation coverage, and 78.3 %-medium vegetation coverage). Anthropophilism in Ae. albopictus was maximal in densely built urban (90.5 %) and progressively decreased from low vegetation-vegetation/forested continuum (66.7, 36.4, and 8.7 %), indicating plasticity in feeding across these landscapes. Epidemiological significance of the findings is discussed.

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“…Ae. albopictus is often viewed as insignificant with respect to dengue but, already in 1977, there was a major outbreak of dengue-2 attributed to this vector on the island of Reunion affecting 30-35% of the inhabitants (Paupy et al, 2001). Between September 2001 and April 2002, 1,644 people on Hawaii were suspected of dengue infection with 122 confirmed cases at the same time as it was shown that the city of Nahiku in Hawaii, had a dense population of Ae.…”

Section: Introductionmentioning

confidence: 99%

Geospatial analysis of invasion of the Asian tiger mosquito Aedes albopictus: competition with Aedes japonicus japonicus in its northern limit area in Japan

Nihei

Komagata

Mochizuki³

et al. 2014

Geospat Health

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Abstract. The mosquito Aedes albopictus, indigenous to Southeast Asia and nearby islands, has spread almost worldwide during recent decades. We confirm the invasion of this mosquito, first reported in Yamagata city in northeast Honshu, Japan in 2000. Previously, only Ae. japonicus japonicus had been collected in this place, but 2 years later, the population of Ae. albopictus had increased, so more than 80% of the total number of larval colonies there consisted of this species. In contrast to Yamagata's new residential area, now infested by Ae. albopictus, the original mosquito remains in the city but its habitats are generally closer to the surrounding mountains, where the normalized difference vegetation index is higher. The factors affecting the distribution of both species in Yamagata city were studied using geographical information systems (GIS) based on data derived from field surveys, aerial photographs, satellite images and digital maps. The range of Aedes mosquito habitats was estimated and visualised on polygon maps and no significant differences were noted when the polygon area was calculated by GIS software in comparison with the satellite images. Although Ae. j. japonicus was expected to be rapidly overrun by Ae. albopictus, this did not happen. Currently, both species coexist; not only in separate sites, but also simultaneously in various water bodies, where larvae from both species have frequently been seen. However, the competitive relationship between these two Aedes species within a warming environment is an issue that should be closely monitored.

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Population structure of Aedes albopictus from La Réunion Island (Indian Ocean) with respect to susceptibility to a dengue virus

Cited by 62 publications

References 26 publications

Aedes albopictus, vecteur des virus du chikungunya et de la dengue à la Réunion : biologie et contrôle

Aedes albopictus, vecteur des virus du chikungunya et de la dengue à la Réunion : biologie et contrôle

Host-feeding pattern of Aedes aegypti and Aedes albopictus (Diptera: Culicidae) in heterogeneous landscapes of South Andaman, Andaman and Nicobar Islands, India

Geospatial analysis of invasion of the Asian tiger mosquito Aedes albopictus: competition with Aedes japonicus japonicus in its northern limit area in Japan

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