title: SEROLOGIC AND ANTIGENIC PROPERTIES OF TYPE A INFLUENZA VIRUS AFTER TRYPSIN TREATMENT.
mesh_terms: D000906:Antibodies; D000941:Antigens; D006385:Hemagglutination Inhibition Tests; D006801:Humans; D009980:Influenza A virus; D009975:Orthomyxoviridae; D010600:Pharmacology; D014357:Trypsin
chemical_list: D000906:Antibodies; D000941:Antigens; D014357:Trypsin
keywords: ANTIBODIES; ANTIGENS; HEMAGGLUTINATION INHIBITION TESTS; INFLUENZA VIRUSES; PHARMACOLOGY; TRYPSIN