| [detection and sequences analysis of bovine hepatitis e virus rna in xinjiang autonomous region]. | reverse transcription-nested polymerase chain reaction (rt-npcr) was used to detect hev (hepatitis e virus, hev) rna in dung or anus-swab samples collected from the cows with the positive anti-hev antibodies in dairy farms in xinjiang autonomous region. 7 of 60 (11.67%) cows were positive for hev rna in one farm. 1 of 31 (3.23%) cows was positive in the other farm. pcr amplification products were cloned, sequenced and analyzed. the result showed that the homology among the 8 bovine hev orf2 189b ... | 2010 | 20329555 |