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ARS Home » Midwest Area » Bowling Green, Kentucky » Food Animal Environmental Systems Research » Research » Publications at this Location » Publication #347885
Research Project: Developing Safe, Efficient and Environmentally Sound Management Practices for the Use of Animal Manure

Location: Food Animal Environmental Systems Research

Title: The global distribution, host range and prevalence of Trypanosoma evansi causing surra: A systematic review and meta-analysis

Author
item AREGAWI, WELDEGEBRIAL - Ethiopian Institute Of Agricultural Research
item BUSCHER, PHILIPPE - Institute Of Tropical Medicine
item Agga, Getahun
item ABDI, RETA - University Of Tennessee

Submitted to: Meeting Abstract
Publication Type: Abstract Only
Publication Acceptance Date: 10/13/2017
Publication Date: 12/18/2017
Citation: Aregawi, W.G., Buscher, P., Agga, G.E., Abdi, R.D. 2017. The global distribution, host range and prevalence of Trypanosoma evansi causing surra: A systematic review and meta-analysis. Meeting Abstract. Paper No. T1.

Interpretive Summary:

Technical Abstract: In contrast with the tsetse transmitted animal trypanosomoses, surra is severely neglected. A systematic literature review and meta-analyses were used to determine the geographic distribution, to identify the naturally susceptible domestic and wild animals and to critically estimate the prevalence of Trypanosoma evansi in the major host species. Four electronic databases, CAB Direct, EDS-ITM, PubMed and ScienceDirect were screened for relevant publications. A total of 274 publications were included for qualitative analysis and 166 were used for meta-analysis. T. evansi was reported from 48 countries; seventeen in Africa, seven in South America, twenty in Asia and four in Europe. Rare outbreaks of surra in Europe were associated with import of infected dromedary camels while in the other countries the disease is endemic. T. evansi was detected in almost all domestic mammals. It was mainly reported from camels in Africa and the Middle East. In East and South East Asia, buffaloes, cattle, dogs and horses were most affected. In South America, the acute form of the disease was reported in horses and dogs while in bovine, surra is more chronic. A large range of susceptible wild animals was reported from South America and Asia. Three human cases of T. evansi infection were reported recently in India and Vietnam. The systematic literature review in this study confirmed the wide geographic distribution and very large host range of T. evansi where it can naturally parasitise almost all domestic mammals and many wild hosts.