Publications by authors named "Zhao-Jun Heng"

Background: is a globally distributed zoonotic protozoan parasite in humans and animals. Infection is widespread in dairy cattle, especially in calves, resulting in neonatal enteritis, production losses and high mortality. However, the occurrence of spp.

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Article Synopsis
  • A study was conducted to assess the prevalence of a food-borne protozoan in Holstein cattle across various regions of Yunnan Province, China, involving analysis of 524 fecal samples.
  • The results indicated a total infection rate of 2.48%, with Chuxiong having the highest rate at 5.71%, while no infections were found in Kunming.
  • Phylogenetic analysis revealed that some samples were closely related to human strains, suggesting a potential risk of zoonosis, highlighting the need for improved prevention and control measures in the region.
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  • * The highest infection rate was found in preweaned calves (33.7%), with lower rates in postweaned calves (24.5%), growing cattle (23.0%), and adults (17.3%).
  • * Genetic analysis showed that the majority of infections were due to assemblage E, while mixed infections with assemblage A were also detected; this study establishes important baseline data for managing protozoon infections in dairy cattle.
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