Department of Microbiology, Parasitology and Biotechnology, College of Veterinary Medicine and Biomedical Sciences, Sokoine University of Agriculture, P.O. Box 3019, Morogoro, Tanzania.
SACIDS Africa Centre of Excellence for Infectious Diseases of Humans and Animals, Sokoine University of Agriculture, P.O. Box 3297, Morogoro, Tanzania.
Parasites Hosts Dis. 2023 May;61(2):127-137. doi: 10.3347/PHD.22170. Epub 2023 May 23.
Bovine trypanosomiasis is a significant health concern for livestock intensification in Côte d'Ivoire. This study aimed to determine the prevalence and distribution of pathogenic trypanosomes and identify the most infected cattle breed in northern Côte d'Ivoire. We examined 700 cattle and found that polymerase chain reaction (PCR) was more sensitive (12.3%) than microscopic observation (5.6%). Among the trypanosome species detected in naturally infected cattle, Trypanosoma vivax was 7.3%, Trypanosoma simiae tsavo was 6.7%, and Trypanosoma congolense was 0.4%. The overall prevalence of trypanosome infection in all cattle breeds was 12.3%, while the prevalence in individual breeds was 14.8%, 7.3%, 10.6%, and 12.3% for N'Dama, Baoule, Zebu, and Mere breed, respectively. The infected animals had low packed cell volume, influencing the prevalence. Our findings indicate that bovine trypanosomes are prevalent in Côte d'Ivoire, and their prevalence varies by region and breed. These pathogens include T. vivax, T. simiae tsavo, and T. congolense.
牛锥虫病是科特迪瓦畜牧业集约化的一个重大健康问题。本研究旨在确定致病性锥虫的流行率和分布情况，并确定科特迪瓦北部受感染最严重的牛品种。我们检查了 700 头牛，发现聚合酶链反应（PCR）比显微镜观察（5.6%）更敏感。在自然感染牛中检测到的锥虫种类中，锥虫（Trypanosoma vivax）为 7.3%，塔萨沃锥虫（Trypanosoma simiae tsavo）为 6.7%，刚果锥虫（Trypanosoma congolense）为 0.4%。所有牛品种的锥虫感染总流行率为 12.3%，而在各个品种中，N'Dama、Baoule、Zebu 和 Mere 品种的流行率分别为 14.8%、7.3%、10.6%和 12.3%。受感染的动物红细胞压积低，影响了流行率。我们的研究结果表明，科特迪瓦存在牛锥虫病，其流行率因地区和品种而异。这些病原体包括锥虫（Trypanosoma vivax）、塔萨沃锥虫（Trypanosoma simiae tsavo）和刚果锥虫（Trypanosoma congolense）。
