title: Togavirus-like agent in SPF chick cell cultures.
mesh_terms: D000818:Animals; D002478:Cells, Cultured; D002642:Chick Embryo; D002645:Chickens / Q000382:microbiology*; D013047:Specific Pathogen-Free Organisms; D014035:Togaviridae / Q000302:isolation & purification*