Korean J Vet Res.  2019 Mar;59(1):33-36. 10.14405/kjvr.2019.59.1.33.

Survey of bovine norovirus infections from diarrheic calves in South Korea, 2015–2017

Affiliations
  • 1Animal Disease Diagnostic Division, Animal and Plant Quarantine Agency, Gimcheon 39660, Korea. vetyh@korea.kr

Abstract

This study examined complex infections with various enteropathogens and the genetic diversity of bovine norovirus (BNoV) in 932 fecal samples from diarrheic calves in South Korea. Overall, seventeen (1.8%) of the samples tested positive for BNoV following RT-PCR examination. All BNoV-positive samples were co-infected with other intestinal pathogens, including bovine Rotavirus, Giardia, Cryptosporidium, and Escherichia coli. The genetic diversity of the BNoVs shared high nucleotide identity (98.1-99.5%) and amino acid homology (93.5-98.1%) with genotype 2 BNoV (GIII.2) strains. In conclusion, BNoV infections with GIII genotypes were detected in complex infections of diarrheic calves in South Korea.

Keyword

bovine; norovirus; diarrhea; Korea

MeSH Terms

Cryptosporidium
Diarrhea
Escherichia coli
Genetic Variation
Genotype
Giardia
Korea*
Norovirus*
Rotavirus
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