Publications des scientifiques de l'IRD

Tantely M. L., Rakotoniaina J. C., Tata E., Andrianaivolambo L., Razafindrasata F., Fontenille Didier, Elissa N. (2013). Biology of mosquitoes that are potential vectors of rift valley fever virus in different biotopes of the central highlands of Madagascar. Journal of Medical Entomology, 50 (3), p. 603-610. ISSN 0022-2585.

Titre du document
Biology of mosquitoes that are potential vectors of rift valley fever virus in different biotopes of the central highlands of Madagascar
Année de publication
2013
Type de document
Article référencé dans le Web of Science WOS:000319123600017
Auteurs
Tantely M. L., Rakotoniaina J. C., Tata E., Andrianaivolambo L., Razafindrasata F., Fontenille Didier, Elissa N.
Source
Journal of Medical Entomology, 2013, 50 (3), p. 603-610 ISSN 0022-2585
There were epidemic-epizootics of Rift Valley Fever (RVF) affecting humans and cattle in Madagascar in the district of Anjozorobe in 2008. Little is known about the role of Malagasy mosquitoes in the circulation of RVF virus. Therefore, we investigated the species diversity, dynamics and biology of potential RVF virus vectors in the rainforest, rainforest edge (village of Anorana), and savanna biotope (village of Antanifotsy) of this district between November 2008 and July 2010. We captured 56,605 adults of 35 different species. Anopheles squamosus (Theobald), Anopheles coustani (Laveran), Culex antennatus (Becker), Culex pipiens (L.), and Culex univittatus (Theobald) were the most abundant during the rainy season with Cx. pipiens the most abundant species in the rainforest (47%), and An. squamosus the most abundant species in the rainforest edge and in the savanna biotope (56%, 60%, respectively). Only Cx. univittatus was abundant in the dry season. The parous rate was > 60% throughout the rainy season for An. squamosus and it was > 50% from the middle to the end of the rainy season for Cx. pipiens. Two additional species have been found only at larval stage. Cattle were the most attractive bait for all species, followed by sheep and poultry. Human was the least attractive for all species. Most of the 163 bloodmeals tested were taken from cattle. Three were from poultry, one was from dog and one was a mixed bloodmeal taken from sheep and cattle. These results on vectorial capacity parameters may allow considering the involvement of mosquito transmission of the virus in the district of Anjozorobe during the recent epidemic-epizootic.
Plan de classement
Entomologie médicale / Parasitologie / Virologie [052]
Description Géographique
MADAGASCAR
Localisation
Fonds IRD [F B010060351]
Identifiant IRD
fdi:010060351
Contact