Reduced human-biting preferences of the African malaria vectors Anopheles arabiensis and Anopheles gambiae in an urban context: controlled, competitive host-preference experiments in Tanzania.

Malaria Journal
Yeromin P MlachaNicodem Govella

Abstract

Host preference is a critical determinant of human exposure to vector-borne infections and the impact of vector control interventions. Widespread use of long-lasting insecticide-treated nets (LLINs) and indoor residual spraying (IRS) across sub-Saharan Africa, which protect humans against mosquitoes, may select for altered host preference traits of malaria vectors over the long term. Here, the host preferences of Anopheles arabiensis and Anopheles gambiae sensu stricto (s.s.) were experimentally assessed in the field, using direct host-preference assays in two distinct ecological settings in Tanzania. Eight Ifakara Tent Trap (ITT), four baited with humans and four with bovine calves, were simultaneously used to catch malaria vectors in open field sites in urban and rural Tanzania. The numbers of mosquitoes collected in human-baited traps versus calf-baited traps were used to estimate human feeding preference for each site's vector species. The estimated proportion [95% confidence interval (CI)] of mosquitoes attacking humans rather than cattle was 0.60 [0.40, 0.77] for An. arabiensis in the rural setting and 0.61 [0.32, 0.85] for An. gambiae s.s. in the urban setting, indicating no preference for either host in both cases (P = ...Continue Reading

References

Jan 1, 1974·Transactions of the Royal Society of Tropical Medicine and Hygiene·G B White
Mar 1, 1993·Journal of Medical Entomology·S W LindsayJ R Armstrong
Nov 15, 2001·Transactions of the Royal Society of Tropical Medicine and Hygiene·G F KilleenJ C Beier
Mar 10, 2009·Trends in Parasitology·Issa N Lyimo, Heather M Ferguson
Dec 10, 2009·The American Journal of Tropical Medicine and Hygiene·Thierry LefèvreFrédéric Thomas
Sep 3, 2010·The American Journal of Tropical Medicine and Hygiene·Nicodem J GovellaGerry F Killeen
Jun 1, 2012·Biology Letters·Samson S KiwareGerry F Killeen
Jun 16, 2012·Frontiers in Physiology·Nicodem James Govella, Heather Ferguson
Oct 2, 2012·Annual Review of Entomology·Willem Takken, Niels O Verhulst
Nov 26, 2015·Proceedings of the National Academy of Sciences of the United States of America·Valentino M GantzAnthony A James
Mar 30, 2016·Source Code for Biology and Medicine·Samson S KiwareGerry F Killeen
Jan 17, 2017·Scientific Reports·Jessica L WaiteMatthew B Thomas
Apr 11, 2019·Scientific Reports·Susan S ImbahaleCarlos Chaccour
Jun 4, 2019·PloS One·Marceline F FindaFredros O Okumu
Jul 10, 2019·Proceedings of the National Academy of Sciences of the United States of America·Ellie Sherrard-SmithThomas S Churcher
Jan 24, 2020·The American Journal of Tropical Medicine and Hygiene·UNKNOWN The Ivermectin RoadmappersRose Zullinger
Jul 25, 2020·Current Biology : CB·Noah H RoseCarolyn S McBride

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