Variation in the vector competence of Aedes polynesiensis for Wuchereria bancrofti

The vector competences of 6 geographic strains of Aedes polynesiensis for Wuchereria bancrofti were studied using two types of experimental infections. Experimental infection of laboratory-bred mosquitoes fed on the carriers' forearms with different levels of microfilaraemia showed that microfi...

Full description

Saved in:
Bibliographic Details
Published in:Parasitology 1995-07, Vol.111 (1), p.19-29
Main Authors: Failloux, A.-B., Raymond, M., Ung, A., Glaziou, P., Martin, P. M. V., Pasteur, N.
Format: Article
Language:English
Subjects:
Adult
Aedes - parasitology
Aedes polynesiensis
Animals
Biodiversity and Ecology
Biological and medical sciences
Blood
Carrier State
Culicidae
density
Diptera
disease vectors
Environmental Sciences
experimental infections
Female
filariasis
Filariasis - parasitology
Filariasis - transmission
French Polynesia
Fundamental and applied biological sciences. Psychology
geographic variations
geographical variation
Humans
Insect Vectors - parasitology
Medically important nuisances and vectors, pests of stored products and materials: population survey and control
microfilariae
Middle Aged
mortality
Polynesia
strain differences
vector competence
Vectors. Intermediate hosts
Wuchereria bancrofti
Wuchereria bancrofti - growth & development
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The vector competences of 6 geographic strains of Aedes polynesiensis for Wuchereria bancrofti were studied using two types of experimental infections. Experimental infection of laboratory-bred mosquitoes fed on the carriers' forearms with different levels of microfilaraemia showed that microfilariae (mf) uptake was directly proportional to the carrier's mf density and, as mf densities decreased, concentration capacity of Ae. polynesiensis increased. It was also shown that infection has an important effect on mosquito mortality, and that the mortality rate differed among mosquito strains. In infections using artificial feeders, the mf uptake was closely regulated, thus showing differences in the vectorial efficiency of Ae. polynesiensis related to the geographic origin of the mosquito strain. The mosquitoes from the Society archipelago were more efficient intermediate hosts than geographically distant strains when infected with W. bancrofti from an island within the archipelago (Tahiti). Mosquito strains from the Society archipelago developed the highest proportion of infective-stage larvae and exhibited the lowest mortality rate when infected with sympatric Tahitian W. bancrofti.
ISSN:0031-1820
1469-8161
DOI:10.1017/S0031182000064568