Mosquito Behavior Change After Distribution of Bednets Results in Decreased Protection Against Malaria Exposure

by Edward K. Thomsen, Gussy Koimbu, Justin Pulford et al.
J Infect Dis (2017) 215 (5): 790-797

8 pp. 500 kB
https://academic.oup.com/jid/article-pdf/215/5/790/11220928/jiw615.pdf

The authors observed a shift in mosquito biting to earlier hours of the evening, before individuals are indoors and protected by bednets, followed by a return to pre-intervention biting rates. As a result, net users and non–net users experienced higher levels of transmission than before the intervention. The personal protection provided by a bednet decreased over the study period and was lowest in the adult population, who may be an important reservoir for transmission. Malaria prevalence decreased in only 1 of 3 study villages after the distribution.

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