Genetic Diversity of in Bactrian Camels () in Xinjiang, Northwestern China.

species are ubiquitous enteric protozoan pathogens of vertebrates distributed worldwide. The purpose of this study was to gain insight into the zoonotic potential and genetic diversity of spp. in Bactrian camels in Xinjiang, northwestern China. A total of 476 fecal samples were collected from 16 collection sites in Xinjiang and screened for by PCR. The prevalence of was 7.6% (36/476). Six species, ( = 24), ( = 6), ( = 2), ( = 2), ( = 1), and ( = 1), were identified based on sequence analysis of the small subunit (SSU) rRNA gene. Sequence analysis of the gene identified six isolates as subtypes, such as If-like-A15G2 ( = 5) and IIdA15G1 ( = 1), two isolates, such as subtype XIIa ( = 2), and one isolate, such as Ixias IkA19G1 ( = 1). This is the first report of , , , and in Bactrian camels in China. These results indicated that the Bactrian camel may be an important reservoir for zoonotic spp. and these infections may be a public health threat in this region.