Insecticide-Treated Nets Can Reduce Malaria Transmission by Mosquitoes Which Feed Outdoors


Insecticide treated nets (ITNs) represent a powerful means for controlling malaria in Africa because the mosquito vectors feed primarily indoors at night. The proportion of human exposure that occurs indoors, when people are asleep and can conveniently use ITNs, is therefore very high. Recent evidence suggests behavioral changes by malaria mosquito populations to avoid contact with ITNs by feeding outdoors in the early evening. We adapt an established mathematical model of mosquito behavior and malaria transmission to illustrate how ITNs can achieve communal suppression of malaria transmission exposure, even where mosquito evade them and personal protection is modest. We also review recent reports from Tanzania to show that conventional mosquito behavior measures can underestimate the potential of ITNs because they ignore the importance of human movements.

DOI: 10.4269/ajtmh.2010.09-0579

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@inproceedings{Govella2010InsecticideTreatedNC, title={Insecticide-Treated Nets Can Reduce Malaria Transmission by Mosquitoes Which Feed Outdoors}, author={Nicodem James Govella and Fredros Okumu and Gerry F. Killeen}, booktitle={The American journal of tropical medicine and hygiene}, year={2010} }