title: Visna virus: a slow virus with an RNA dependent DNA polymerase.
mesh_terms: D000818:Animals; D004254:DNA Nucleotidyltransferases / Q000378:metabolism*; D004279:DNA, Viral / Q000096:biosynthesis; D005827:Genetics, Microbial; D006150:Guanine Nucleotides / Q000378:metabolism; D009711:Nucleotides / Q000378:metabolism; D011328:Prions / Q000201:enzymology*; D012367:RNA, Viral / Q000378:metabolism; D012608:Scrapie / Q000209:etiology; D012756:Sheep; D012897:Slow Virus Diseases / Q000209:etiology; D013501:Surface-Active Agents; D013698:Templates, Genetic; D014316:Tritium
chemical_list: D004279:DNA, Viral; D006150:Guanine Nucleotides; D009711:Nucleotides; D011328:Prions; D012367:RNA, Viral; D013501:Surface-Active Agents; D014316:Tritium; D004254:DNA Nucleotidyltransferases