Seasonal variation of tsetse fly species abundance and prevalence of trypanosomes in the Maasai Steppe, Tanzania

Journal of Vector Ecology : Journal of the Society for Vector Ecology
Happiness J NnkoIsabella M Cattadori

Abstract

Tsetse flies, the vectors of trypanosomiasis, represent a threat to public health and economy in sub-Saharan Africa. Despite these concerns, information on temporal and spatial dynamics of tsetse and trypanosomes remain limited and may be a reason that control strategies are less effective. The current study assessed the temporal variation of the relative abundance of tsetse fly species and trypanosome prevalence in relation to climate in the Maasai Steppe of Tanzania in 2014-2015. Tsetse flies were captured using odor-baited Epsilon traps deployed in ten sites selected through random subsampling of the major vegetation types in the area. Fly species were identified morphologically and trypanosome species classified using PCR. The climate dataset was acquired from the African Flood and Drought Monitor repository. Three species of tsetse flies were identified: G. swynnertoni (70.8%), G. m. morsitans (23.4%), and G.pallidipes (5.8%). All species showed monthly changes in abundance with most of the flies collected in July. The relative abundance of G. m. morsitans and G. swynnertoni was negatively correlated with maximum and minimum temperature, respectively. Three trypanosome species were recorded: T. vivax (82.1%), T. brucei (8....Continue Reading

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Citations

Nov 4, 2017·EcoHealth·Happiness J NnkoAnna Estes
Nov 9, 2018·Journal of Vector Ecology : Journal of the Society for Vector Ecology·Lilian S CatenacciJ Sebastian Tello
Jul 10, 2019·International Journal of Injury Control and Safety Promotion·Ahmed ArafaJon Mark Hirshon
Feb 25, 2020·PLoS Neglected Tropical Diseases·Rosemary BatetaAdalgisa Caccone
May 8, 2020·PLoS Neglected Tropical Diseases·Elisha B Are, John W Hargrove
Apr 3, 2020·Mathematical Biosciences and Engineering : MBE·Mlyashimbi HelikumiSteady Mushayabasa
Jul 10, 2017·Infection, Genetics and Evolution : Journal of Molecular Epidemiology and Evolutionary Genetics in Infectious Diseases·Herakles A GarciaMarta M G Teixeira

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