U.S. EPIZOOTIC OF EQUINE INFLUENZA, 1963.
D000818:Animals; D004813:Epidemiology; D006385:Hemagglutination Inhibition Tests; D006734:Horse Diseases; D006736:Horses; D006801:Humans; D007251:Influenza, Human; D009975:Orthomyxoviridae; D009976:Orthomyxoviridae Infections; D014481:United States
EPIDEMIOLOGY; HEMAGGLUTINATION INHIBITION TESTS; HORSE DISEASES; INFLUENZA; INFLUENZA VIRUSES; UNITED STATES