Animals (May 2024)

Prevalence and Molecular Characterization of <i>Cryptosporidium</i> spp., <i>Giardia duodenalis</i>, and <i>Enterocytozoon bieneusi</i> in Cattle in Heilongjiang Province, Northeast China

  • Jun-Feng Gao,
  • Lu Zhou,
  • Ai-Hui Zhang,
  • Mei-Ru Hou,
  • Xue-Wei Liu,
  • Xin-Hui Zhang,
  • Jia-Wen Wang,
  • Xue Wang,
  • Xue Bai,
  • Chen-Long Jiao,
  • Yan Yang,
  • Zhuo Lan,
  • Hong-Yu Qiu,
  • Chun-Ren Wang

DOI
https://doi.org/10.3390/ani14111635
Journal volume & issue
Vol. 14, no. 11
p. 1635

Abstract

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Crytosporidium spp., Giardia duodenalis, and Enterocytozoon bieneusi are important diarrheal pathogens with a global distribution that threatens the health of humans and animals. Despite cattle being potential transmission hosts of these protozoans, the associated risks to public health have been neglected. In the present study, a total of 1155 cattle fecal samples were collected from 13 administrative regions of Heilongjiang Province. The prevalence of Cryptosporidium spp., G. duodenalis, and E. bieneusi were 5.5% (64/1155; 95% CI: 4.2–6.9), 3.8% (44/1155; 95% CI: 2.7–4.9), and 6.5% (75/1155; 95% CI: 5.1–7.9), respectively. Among these positive fecal samples, five Cryptosporidium species (C. andersoni, C. bovis, C. ryanae, C. parvum, and C. occultus), two G. duodenalis assemblages (E and A), and eight E. bieneusi genotypes (BEB4, BEB6, BEB8, J, I, CHS7, CHS8, and COS-I) were identified. Phylogenetic analysis showed that all eight genotypes of E. bieneusi identified in the present study belonged to group 2. It is worth noting that some species/genotypes of these intestinal protozoans are zoonotic, suggesting a risk of zoonotic disease transmission in endemic areas. The findings expanded our understanding of the genetic composition and zoonotic potential of Cryptosporidium spp., G. duodenalis, and E. bieneusi in cattle in Heilongjiang Province.

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