Serologic evidence of swine influenza in New York.
D000818:Animals; D006385:Hemagglutination Inhibition Tests; D009518:New York; D009976:Orthomyxoviridae Infections / Q000453:epidemiology / Q000662:veterinary*; D013552:Swine; D013553:Swine Diseases / Q000453:epidemiology*