title: Studies on the adaptive properties of CoxsackieA4 viruses.
mesh_terms: D000818:Animals; D000831:Animals, Newborn; D003588:Cytopathogenic Effect, Viral; D004770:Enterovirus / Q000472:pathogenicity*; D005455:Fluorescent Antibody Technique; D006367:HeLa Cells; D051379:Mice; D009154:Mutation; D009500:Neutralization Tests; D010849:Picornaviridae; D014774:Virulence; D014776:Virus Cultivation; D014779:Virus Replication