Prevalence and incidence of trypanosomosis in horses and donkeys in the Gambia

Veterinary Parasitology
D FayeS Geerts

Abstract

In a study of the prevalence and incidence of trypanosomosis in horses and donkeys in two regions of the Gambia, surveys were carried out at Niamina east and Bansang south with a high and low to moderate tsetse challenge, respectively. Eleven horses and 67 donkeys were sampled monthly from August 1997 to September 1998. Blood samples were examined for trypanosomes using the buffy-coat (BC) method and polymerase chain reaction (PCR). Three primer sets were used, specific for either Trypanosoma vivax (TVW), Trypanosoma congolense (GOL) or Trypanosoma brucei (ORPHON5J). The BC results showed that the prevalence (August 1997) and the average monthly incidence (September 1997-1998) of trypanosome infections in horses (45.5 and 16%, respectively) were significantly higher than in donkeys (6.2 and 9%, respectively). Using PCR, the number of detected cases was seven times higher than using the BC. T. congolense was the most frequently observed species, followed by T. vivax and T. brucei. This study confirms earlier observations by other authors that donkeys, which are exposed to a similar tsetse challenge as horses, are significantly less infected with trypanosomes than the latter.

References

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Citations

Sep 8, 2010·Parasitology Research·Aleksandro S Da SilvaSilvia G Monteiro
Jun 13, 2009·International Journal for Parasitology·Craig W DuffyAnnette MacLeod
Dec 28, 2016·PLoS Neglected Tropical Diseases·Geoffrey GimonneauJérémy Bouyer
Sep 12, 2018·Journal of Veterinary Diagnostic Investigation : Official Publication of the American Association of Veterinary Laboratory Diagnosticians, Inc·Abdullah D AlanaziHajri R Al-Shehri
May 17, 2019·Parasites & Vectors·Philippe BüscherNick Van Reet
Mar 2, 2018·Journal of Parasitic Diseases : Official Organ of the Indian Society for Parasitology·Naveed SabirIshtiaq Ahmad
Mar 23, 2020·Parasites & Vectors·Alexandra G RafteryDavid G M Sutton
Jun 25, 2021·Acta Parasitologica·Alpha KargboEmmanuel Oluwadare Balogun

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