detection of bovine torovirus in fecal specimens of calves with diarrhea in japan.the aim of this study was to determine the prevalence of bovine torovirus (botv) in bovine fecal samples and to determine whether a relationship exists between botv and diarrhea in japan. ninety-nine diarrheic and 114 normal fecal samples from calves in hokkaido prefecture and 38 diarrheic fecal samples from calves in 10 other prefectures were examined by reverse transcription (rt)-pcr with primers designed in the spike (s) gene for the presence of botv. the specimens were also examined for the ...200717551218
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