Genetic Diversity of Cryptosporidium parvum in Neonatal Dairy Calves in Xinjiang, China.

ABSTRACT: Cryptosporidium parvum has been identified as a major cause of diarrhea and diarrhea-associated deaths in young children and neonatal calves. Infections can remain asymptomatic but may lead to malnutrition and persistent growth retardation. To assess the relationship between C. parvum genetic diversity and pathogenicity in neonatal dairy calves and determine the cause of diarrhea among these calves, 232 fecal samples from neonatal dairy calves on 12 farms in Xinjiang, China, were characterized for Cryptosporidium presence based on the small subunit rRNA gene. The Cryptosporidium prevalence was 38.4% (89/232), and three species were detected with restriction fragment length polymorphism analysis, including C. parvum (the significantly dominant species), C. ryanae, and C. bovis. Cryptosporid

SUBMITTER: Wu Y 

PROVIDER: S-EPMC7559002 | biostudies-literature | 2020 Aug

REPOSITORIES: biostudies-literature