Trypanosomosis prevalence in natural field-based infection: insights into systematic review and meta-analysis of studies from 1980 to 2018 on The Gambian ruminants with special emphasis on cattle.

Tropical Animal Health and Production
Olawale Festus OlaniyanArss Secka

Abstract

Consistent quantification of trypanosomes, the parasite responsible for African animal trypanosomosis, is important for effective surveillance, control, and eradication strategies. Here, we used a rigorously predefined protocol to search and select eligible publications that utilized either microscopy, serology, or molecular methods to investigate prevalence of trypanosomosis based on the presence of any of three most common Trypanosoma spp. (T. congolense, T. vivax, and T. brucei) in the field-based naturally grazed Gambian cattle, sheep, and goats. To combine results of studies on cattle through meta-analysis, sensitivity and subgroup analyses were carried out with the random effects model, and prevalence estimates of each study with 95% confidence intervals (CI) were presented with a forest plot. All the eligible studies utilized the buffy coat technique (BCT) to detect trypanosomes in the blood samples, while the more sensitive serological and molecular detection methods are yet to be widely exploited. Heterogeneity among the studies on cattle was moderate (I2 = 55%), and the pooled trypanosomosis prevalence based on the BCT was 5.2% (95% CI: 4.0-6.4). Meanwhile, estimated prevalence varied according to the trypanosome dete...Continue Reading

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Methods Mentioned

BETA
ELISA
PCR
enzyme-linked immunosorbent assay

Software Mentioned

ME
Excel ( ME )
Mendeley Desktop

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African trypanosomiasis, also known as sleeping sickness, is an insect-borne parasitic disease of humans and other animals. It is caused by protozoa of the species Trypanosoma brucei and almost invariably progresses to death unless treated. Discover the latest research on African trypanosomiasis here.

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