title: Neutralization of Friend leukaemia by sera of unimmunized animals.
mesh_terms: D000328:Adult; D000818:Animals; D000998:Antiviral Agents; D002417:Cattle; D002645:Chickens; D010856:Columbidae; D004285:Dogs; D004372:Ducks; D005622:Friend murine leukemia virus; D006168:Guinea Pigs; D006736:Horses; D006801:Humans; D008297:Male; D051379:Mice; D008807:Mice, Inbred BALB C; D008810:Mice, Inbred C57BL; D009500:Neutralization Tests; D010527:Perissodactyla; D011817:Rabbits; D051381:Rats; D012756:Sheep; D013552:Swine; D014422:Turkeys
chemical_list: D000998:Antiviral Agents