title: EFFECT OF CHICK EMBRYO ALLANTOIC FLUID INHIBITORS ON STABILITY OF HAEMAGGLUTININS OF TWO VARIANTS OF A2 INFLUENZA VIRUS.
mesh_terms: D000818:Animals; D002642:Chick Embryo; D005321:Extraembryonic Membranes; D006385:Hemagglutination Inhibition Tests; D006388:Hemagglutinins; D007106:Immune Sera; D009975:Orthomyxoviridae; D012106:Research
chemical_list: D006388:Hemagglutinins; D007106:Immune Sera
keywords: CHICK EMBRYO; EXPERIMENTAL LAB STUDY; FETAL MEMBRANES; HEMAGGLUTINATION INHIBITION TESTS; IMMUNE SERUMS; INFLUENZA VIRUSES