Geographically extensive larval surveys reveal an unexpected scarcity of primary vector mosquitoes in a region of persistent malaria transmission in western Zambia.

ABSTRACT:

Background

The Barotse floodplains of the upper Zambezi River and its tributaries are a highly dynamic environment, with seasonal flooding and transhumance presenting a shifting mosaic of potential larval habitat and human and livestock blood meals for malaria vector mosquitoes. However, limited entomological surveillance has been undertaken to characterize the vector community in these floodplains and their environs. Such information is necessary as, despite substantial deployment of insecticide-treated nets (ITNs) and indoor residual spraying (IRS) against Anopheles vectors, malaria transmission persists across Barotseland in Zambia's Western Province.

Methods

Geographically extensive larval surveys were undertaken in two health districts along 102 km of transects, at fine

SUBMITTER: Cross DE 

PROVIDER: S-EPMC7849156 | biostudies-literature | 2021 Feb

REPOSITORIES: biostudies-literature