Evaluation de la séroprévalence de la trypanosomose bovine en Guinée

Summary Barry A.M., Roger F., Diallo M.B., Geerts S. Evaluation of Cattle Trypanosomosis Seroprevalence in GuineaAn evaluation of trypanosomosis prevalence was carried out in Guinea on sera originating from the serum bank of the vet-erinary laboratory of the National Livestock Services. Nine hundred and twenty-eight sera sampled on N’dama cattle were randomly selected and analyzed for antibody and anti-gen detection of Trypanosoma spp. Results obtained in the first test revealed Trypanosoma spp. antibodies in 67% of the cat-tle, with rates of 72% in the High Guinea area, 68% in Lower Guinea, 63% in Forest Guinea, and 62% in Middle Guinea. Among the animals, 69% of the females were infected or had been in contact with the infectious agent, against 62% of the males. The animals were infected regardless of their age. Infec-tion rates were 71, 43, 61, 63, 59, and 74% in cattle under one year of age, 1-2 years old, 2-3 years old, 3-4 years old, 4-5 years old, over 5 years old, respectively. The second test showed the presence of antigens against