title: Respiratory virus vaccines. 8. Field evaluation of trivalent parainfluenza virus vaccine among preschool children in families, 1967-1968.
mesh_terms: D000906:Antibodies / Q000032:analysis; D002675:Child, Preschool; D005260:Female; D005334:Fever / Q000150:complications; D006385:Hemagglutination Inhibition Tests; D006801:Humans; D007223:Infant; D007273:Injections, Intramuscular; D007279:Injections, Subcutaneous; D008297:Male; D008722:Methods; D009976:Orthomyxoviridae Infections / Q000517:prevention & control*; D018184:Paramyxoviridae Infections / Q000453:epidemiology / Q000276:immunology / Q000517:prevention & control; D010414:Pennsylvania; D011159:Population Surveillance; D012141:Respiratory Tract Infections / Q000453:epidemiology; D018108:Respirovirus / Q000276:immunology* / Q000302:isolation & purification; D012411:Rubella Vaccine; D014611:Vaccination; D014765:Viral Vaccines
chemical_list: D000906:Antibodies; D012411:Rubella Vaccine; D014765:Viral Vaccines