title: Parainfluenza virus immunization. 3. Antigenicity of aqueous, egg-adapted, parainfluenza types 1 and 2 virus vaccines.
mesh_terms: D000917:Antibody Formation; D002648:Child; D002675:Child, Preschool; D006385:Hemagglutination Inhibition Tests; D006801:Humans; D007273:Injections, Intramuscular; D009976:Orthomyxoviridae Infections / Q000517:prevention & control*; D014611:Vaccination; D014765:Viral Vaccines
chemical_list: D014765:Viral Vaccines