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Patterns of tsetse abundance and trypanosome infection rates among habitats of surveyed villages in Maasai steppe of northern Tanzania

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Infectious Diseases of Poverty 2017年第1期6卷 1111-1122页

作者： Anibariki Ngonyoka Paul S.Gwakisa Anna B.Estes Linda P.Salekwa Happiness J.Nnko Peter J.Hudson Isabella M.Cattadori School of Life Sciences and Bioengineering Nelson Mandela African Institution of Science and TechnologyP.O.Box 447ArushaTanzania Genome Sciences Center Department of MicrobiologyParasitology and Immunology.College of Veterinary and Medical SciencesSokoine University of AgricultureMorogoroTanzania Centre for Infectious Disease Dynamics The Huck Institutes of the Life SciencesThe Pennsylvania State UniversityUniversity ParkUSA Department of Conservation Biology School of Biological SciencesUniversity of DodomaDodomaTanzania Department of Geography and Environmental studies University of DodomaDodomaTanzania

Background:Changes of land cover modify the characteristics of habitat,host-vector interaction and consequently infection rates of disease causing *** this paper,we report variations in tsetse distribution patterns,abundance and infection rates in relation to habitat types and age in the Maasai Steppe of northern *** Africa,tsetse-transmitted trypanosomiasis negatively impacted human life where about 40 million people are at risk of contracting the disease with dramatic socio-economical consequences,for instance,loss of livestock,animal productivity,and ***:We trapped tsetse flies in dry and wet seasons between October 2014 and May 2015 in selected habitats across four villages:Emboreet,Loiborsireet,Kimotorok and Oltukai adjacent to protected *** collected include number and species of tsetse flies caught in baited traps,PCR identification of trypanosome species and extraction of monitored Normalized Difference Vegetation Index(NDVI)data from Moderate Resolution Imaging Spectrometer(MODIS).Results:Our findings demonstrate the variation of tsetse fly species abundance and infection rates among habitats in surveyed villages in relation to NDVI and host *** have shown higher tsetse fly abundance in Acacia-swampy ecotone and riverine habitats for Emboreet and other villages,*** abundance was inconsistent among habitats in different *** was highly infested with Glossina swynnertoni(68%)in ecotone and swampy habitats followed by ***(28%)and ***(4%)in riverine *** the remaining villages,the dominant tsetse fly species by 95%was *** in all *** vivax was the most prevalent species in all infected flies(95%)with few observations of co-infections(with *** or ***).Conclusions:The findings of this study provide a framework to mapping hotspots of tsetse infestation and trypanosomiasis infection and enhance the communities to plan for effect

关键词： Habitat variability tsetse fly Host availability Infection rate Trypanosomes

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