title: Serial passage of two plaque types of parainfluenza-3 virus: changes in hemagglutinating properties and cytopathic effect.
mesh_terms: D000362:Agar; D000818:Animals; D002417:Cattle; D002460:Cell Line; D002645:Chickens; D003588:Cytopathogenic Effect, Viral; D014644:Genetic Variation; D006168:Guinea Pigs; D006386:Hemagglutination Tests; D007668:Kidney; D018108:Respirovirus / Q000145:classification* / Q000254:growth & development; D014422:Turkeys; D014776:Virus Cultivation
chemical_list: D000362:Agar