Natural sugar feeding rates of Anopheles mosquitoes collected by different methods in western Kenya

Omondi, Seline, Kosgei, Jackline, Agumba, Silas, Polo, Brian, Yalla, Nick, Moshi, Vincent, Abong’o, Bernard, Ombok, Maurice, McDermott, Daniel, Entwistle, Julian, Samuels, Aaron M., terKuile, Feiko ORCID: https://orcid.org/0000-0003-3663-5617, Gimnig, John E. and Ochomo, Eric (2022) 'Natural sugar feeding rates of Anopheles mosquitoes collected by different methods in western Kenya'. Scientific Reports, Vol 12, Issue 1, e20596.

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Abstract

Attractive targeted sugar baits (ATSBs) are a potential vector control tool that exploits the sugar-feeding behaviour of mosquitoes. We evaluated the sugar-feeding behaviour of Anopheles mosquitoes as part of baseline studies for cluster randomised controlled trials of ATSBs. Mosquitoes were collected indoors and outdoors from two villages in western Kenya using prokopack aspirations, malaise tent traps and ultraviolet (UV) light traps. Individual mosquitoes were subjected to the cold anthrone test to assess the presence of sugar. Overall, 15.7% of collected mosquitoes had fed on natural sugar sources. By species and sex, the proportion sugar-fed was 41.3% and 27.7% in male and female Anopheles funestus, 27.2% and 12.8% in male and female An. arabiensis, and 9.7% and 8.3% in male and female An. coustani, respectively. Sugar-feeding was higher in unfed than blood-fed mosquitoes and higher in male than gravid mosquitoes. Anopheles mosquitoes obtained sugar meals from natural sources during all physiological stages, whether they rest indoors or outdoors. These findings offer a potential avenue to exploit for the control of mosquitoes, particularly with the advent of ATSBs, which have been shown to reduce mosquito densities in other regions.

Item Type:	Article
Subjects:	QX Parasitology > QX 20 Research (General) QX Parasitology > Insects. Other Parasites > QX 510 Mosquitoes QX Parasitology > Insects. Other Parasites > QX 515 Anopheles
Faculty: Department:	Biological Sciences > Vector Biology Department Clinical Sciences & International Health > Clinical Sciences Department
Digital Object Identifer (DOI):	https://doi.org/10.1038/s41598-022-25004-9
SWORD Depositor:	JISC Pubrouter
Depositing User:	JISC Pubrouter
Date Deposited:	20 Dec 2022 16:51
Last Modified:	20 Dec 2022 16:51
URI:	https://archive.lstmed.ac.uk/id/eprint/21575

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