PCR and sequencing revealed that bovine papillomavirus type 1 (BPV-1) and BPV-2 were detected from anal and vulval fibropapillomas, respectively.  Reverse-transcriptase PCR detected the early region, but not the late region of BPV mRNA in all three cases. 
PCR
PCR and sequencing revealed that bovine papillomavirus type 1 (BPV-1) and BPV-2 were detected from anal and vulval fibropapillomas, respectively. 
sequencing
Reverse-transcriptase PCR detected the early region, but not the late region of BPV mRNA in all three cases. 
Reverse-transcriptase PCR