A more sensitive hemagglutination test for A2 strains of influenza virus.
D000818:Animals; D002642:Chick Embryo; D002645:Chickens; D006386:Hemagglutination Tests; D006387:Hemagglutination, Viral; D008722:Methods; D009975:Orthomyxoviridae; D009976:Orthomyxoviridae Infections