New influenza vaccine for 1974-1975.
D000328:Adult; D000368:Aged; D000956:Antigens, Viral; D002648:Child; D006801:Humans; D007252:Influenza Vaccines / Q000008:administration & dosage; D007273:Injections, Intramuscular; D008875:Middle Aged; D009439:Neuraminidase; D009975:Orthomyxoviridae / Q000145:classification / Q000201:enzymology / Q000276:immunology
D000956:Antigens, Viral; D007252:Influenza Vaccines; D009439:Neuraminidase