Patterns of tsetse abundance and trypanosome infection rates among habitats of surveyed villages in Maasai steppe of northern Tanzania
| Autor: | Linda Peniel Salekwa, Happiness J. Nnko, Isabella M. Cattadori, Anibariki Ngonyoka, Anna B. Estes, Paul Gwakisa, Peter J. Hudson |
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| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: |
0301 basic medicine
Male Trypanosoma Tsetse Flies 030231 tropical medicine Population Dynamics Tanzania lcsh:Infectious and parasitic diseases 03 medical and health sciences 0302 clinical medicine Infection rate Abundance (ecology) Trypanosomes medicine Animals lcsh:RC109-216 Relative species abundance Ecosystem biology Ecology Host (biology) Tsetse fly lcsh:Public aspects of medicine fungi Public Health Environmental and Occupational Health lcsh:RA1-1270 General Medicine Ecotone biology.organism_classification medicine.disease Trypanosoma vivax 030104 developmental biology Infectious Diseases Habitat Female Habitat variability Trypanosomiasis Animal Distribution Research Article Host availability |
| Zdroj: | Infectious Diseases of Poverty Infectious Diseases of Poverty, Vol 6, Iss 1, Pp 1-12 (2017) |
| ISSN: | 2049-9957 |
| Popis: | Background Changes of land cover modify the characteristics of habitat, host-vector interaction and consequently infection rates of disease causing agents. In 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 Tanzania. In 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 manpower. Methods 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 areas. Data 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 abundance. Results have shown higher tsetse fly abundance in Acacia-swampy ecotone and riverine habitats for Emboreet and other villages, respectively. Tsetse abundance was inconsistent among habitats in different villages. Emboreet was highly infested with Glossina swynnertoni (68%) in ecotone and swampy habitats followed by G. morsitans (28%) and G. pallidipes (4%) in riverine habitat. In the remaining villages, the dominant tsetse fly species by 95% was G. pallidipes in all habitats. Trypanosoma vivax was the most prevalent species in all infected flies (95%) with few observations of co-infections (with T. congolense or T. brucei). 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 effective control of trypanosomiasis. Electronic supplementary material The online version of this article (doi:10.1186/s40249-017-0340-0) contains supplementary material, which is available to authorized users. |
| Databáze: | OpenAIRE |
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