[Age distribution of antibody to swine influenza virus strain A/NJ/9/76 (author's transl)].
D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D000914:Antibodies, Viral / Q000032:analysis*; D002648:Child; D006801:Humans; D009980:Influenza A virus / Q000276:immunology*; D008875:Middle Aged
D000914:Antibodies, Viral