Field evaluation of spatial repellency of metofluthrin-impregnated latticework plastic strips against Aedes aegypti (L.) and analysis of environmental factors affecting its efficacy in My Tho City, Tien Giang, Vietnam.

Spatial repellency of metofluthrin-impregnated polyethylene latticework plastic strips against Aedes aegypti mosquitoes was evaluated. Analysis of environmental factors affecting the efficacy of these strips, such as room temperature, humidity, and house structure, was performed in a residential area in My Tho City, Tien Giang Province, Vietnam. Treatment with the strips at the rate of 1 strip per 2.

Aedes aegypti in south Vietnam: ecology, genetic structure, vectorial competence and resistance to insecticides.

In Vietnam, dengue hemorrhagic fever has been detected since the 1950s. In Southeast Asia, urban centers expanded rapidly in an uncontrolled and unplanned way. The Aedes aegypti populations and dengue viruses thrived in these new ecological and demographic settings.

[Aedes aegypti, vector of the dengue virus: spatio-temporal structure of its genetic variation].

Aedes aegypti is the main vector of dengue viruses. Methods for limiting the spread of dengue outbreaks are currently based on vector control. Estimates of population genetic organization and gene flow with respect to vector capacity have provided great insights into dengue epidemiology.

Temporal genetic variation in Aedes aegypti populations in Ho Chi Minh City (Vietnam).

Aedes aegypti, the main vector of dengue viruses in Asia, displays variation in population density over time. The larval habitats of this species being unevenly distributed and transient (depending on cycles of drought and flood), the forces generating temporal variation in gene frequencies in populations are studied. We sampled seven mosquito populations from Ho Chi Minh City (Vietnam) and its suburbs on five occasions between April 1999 and August 2000.