Environmental Microbial and Food Safety Laboratory, ARS, US Department of Agriculture, Beltsville, MD, USA.
Vet Parasitol. 2013 Sep 1;196(1-2):31-6. doi: 10.1016/j.vetpar.2013.02.006. Epub 2013 Feb 21.
The prevalence of Giardia duodenalis assemblages in horses is poorly known. The present study examined feces from 195 horses, 1 month-17 years of age, in 4 locations in Colombia. Prevalence of infection was determined by PCR and all positives were sequenced to determine the genotypes. Thirty four (17.4%) horses were found positive. This is the first report of G. duodenalis in horses from Colombia. Prevalence in female and male horses was 18.9% and 15.1%, respectively. Prevalence in horses <1 year of age and horses >1 year of age was 21.1% and 15.1%, respectively. Molecular characterization using the beta giardin (bg), glutamate dehydrogenase (gdh), triose phosphate isomerase (tpi), and small subunit ribosomal RNA (ssurRNA) genes identified G. duodenalis Assemblages A and B, the assemblages regarded as zoonotic.
贾第虫属在马中的流行情况知之甚少。本研究检查了来自哥伦比亚 4 个地点的 195 匹马，年龄在 1 个月至 17 岁之间。通过 PCR 确定感染的患病率，所有阳性结果均进行测序以确定基因型。发现 34 （17.4％）匹马呈阳性。这是哥伦比亚首次报告马中的贾第虫属。雌性和雄性马的患病率分别为 18.9％和 15.1％。1 岁以下和 1 岁以上的马的患病率分别为 21.1％和 15.1％。使用β-微管蛋白（bg）、谷氨酸脱氢酶（gdh）、磷酸丙糖异构酶（tpi）和小亚基核糖体 RNA（ssurRNA）基因的分子特征鉴定了被认为是人畜共患病的贾第虫属 A 和 B 组。
