[Surveillance on the relation of influenza infection between humans and pigs].
D000818:Animals; D000914:Antibodies, Viral / Q000032:analysis; D004199:Disease Vectors; D006385:Hemagglutination Inhibition Tests; D006801:Humans; D007251:Influenza, Human / Q000635:transmission*; D009975:Orthomyxoviridae / Q000276:immunology; D013552:Swine / Q000382:microbiology*; D015047:Zoonoses
D000914:Antibodies, Viral