2004f-300 adverseeffects congresses contamination cytodiagnosis diagnosis drugcontamination etiology genetic history hiv-1 hivinfections hybridization insituhybridization neoplasms papillomaviridae papillomavirusdiseases papillomaviruses pathogenesis pathogenicity poliomyelitisvaccine poliovirusvaccines polymerasechainreaction polyomavirusinfections popularworks simianvirus40 sv40(virus) wc556b724v2004