| simultaneous presence of bovine papillomavirus in blood and in short-term lymphocyte cultures from dairy cattle in pernambuco, brazil. | bovine papillomaviruses (bpv) are the causal agents of benign and malignant lesions; they can cause dramatic economic losses in cattle. although 10 virus types have been described, three types are most common in tumors, namely bpv-1, -2 and -4. previous studies have reported bpv in blood cells and the possibility of blood acting as a latent virus site and/or transmission agent of virus dissemination. we studied a holstein dairy herd in pernambuco, brazil, in which several animals showed severe c ... | 2009 | 20082260 |