ArticleVirus research2007
Epidemiological analysis of bovine torovirus in Japan.
Article in Virus research, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.
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Who cites it
20 citing papers in PubMed, 30 citations in OpenAlex.
- Article
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- Prevalence of bovine astroviruses and their genotypes in sampled Chinese calves with and without diarrhoea.The Journal of general virology · 2021Article
- Recent Progress in Torovirus Molecular Biology.Viruses · 2021Review
- First report and genetic characterization of bovine torovirus in diarrhoeic calves in China.BMC veterinary research · 2020Article
- Whole genome analysis of Japanese bovine toroviruses reveals natural recombination between porcine and bovine toroviruses.Infection, genetics and evolution : journal of molecular epidemiology and evolutionary genetics in infectious diseases · 2016Article
- Molecular detection of bovine coronavirus in a diarrhea outbreak in pasture-feeding Nellore steers in southern Brazil.Tropical animal health and production · 2016Article
- Detection and molecular characterisation of bovine corona and toroviruses from Croatian cattle.BMC veterinary research · 2015Article
- First detection and molecular diversity of Brazilian bovine torovirus (BToV) strains from young and adult cattle.Research in veterinary science · 2013Article
- Hemagglutination mediated by the spike protein of cell-adapted bovine torovirus.Archives of virology · 2013Article
- Development and application of one-step multiplex reverse transcription PCR for simultaneous detection of five diarrheal viruses in adult cattle.Archives of virology · 2012Article
- Characterization of epidemic diarrhea outbreaks associated with bovine torovirus in adult cows.Archives of virology · 2012Article
- Synthesis and inhibitory activity of sialic acid derivatives targeted at viral sialate-O-acetylesterases.European journal of medicinal chemistry · 2011Article
- Longitudinal serological and virological study on porcine torovirus (PToV) in piglets from Spanish farms.Veterinary microbiology · 2010Article
- Development of universal SYBR Green real-time RT-PCR for the rapid detection and quantitation of bovine and porcine toroviruses.Journal of virological methods · 2010Article
- Genetic and antigenic characterization of newly isolated bovine toroviruses from Japanese cattle.Journal of clinical microbiology · 2010Article
- Detection and molecular characterization of porcine toroviruses in Korea.Archives of virology · 2010Article
- Molecular characterization of a new PToV strain. Evolutionary implications.Virus research · 2009Article
- Detection and characterization of bovine torovirus from the respiratory tract in Japanese cattle.Veterinary microbiology · 2009Article
- Molecular epidemiology of bovine toroviruses circulating in South Korea.Veterinary microbiology · 2008Article
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Authors and funding
3 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Bovine torovirus (BToV), a member of the Coronaviridae family, is an established gastrointestinal infectious agent in cattle. No epidemiological research on BToV has been reported from Japan. In this study, we performed a survey to detect BToV in Japan in 2004 and 2005 using 231 fecal samples (167 from diarrheic cattle and 64 from asymptomatic cattle) that were analyzed by nested reverse transcription (RT) PCR using primers located in the consensus sequences of the reported BToV nucleocapsid (N), membrane (M), and spike (S) genes. BToV N, M, and S genes were detected in 6.5% (15/231), 6.1% (14/231), and 5.6% (13/231) of samples by nested-RT-PCR, respectively. In conclusion, detectability was improved compared to the results of the first round of RT-PCR. BToV was detected at a significantly higher rate in diarrheic samples than in asymptomatic samples (14/167 diarrheic samples [8.4%] and 1/64 asymptomatic samples [1.6%]), suggesting that BToV may act as a risk factor for diarrhea in Japanese cattle. The nucleotide sequence of M fragments from the BToV isolates including the newly identified Japanese isolates showed more than 97% identity. A similar degree of homology was observed in the N gene fragment among BToV isolates with the exception of BRV-1 and BRV-2. Domestic samples were classified into three clusters by phylogenetic analysis of the S gene fragment, which were considerably correlated with the geographic origin of the samples. BToV positive areas did not adjoin each other but were spread across a wide range, suggesting that BToV exists conventionally in Japan and is geographically differentiated. We also developed an RFLP method to distinguish these clusters using two restriction enzymes, HaeIII and AccI. This method should be useful for comparing newly acquired BToV-positive samples with the reported BToVs.
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