title: A myxovirus receptor-inactivating agent occurring in cultures of Clostridium welchii.
mesh_terms: D000906:Antibodies; D003016:Clostridium perfringens / Q000276:immunology*; D006385:Hemagglutination Inhibition Tests; D006386:Hemagglutination Tests; D006801:Humans; D066298:In Vitro Techniques; D009439:Neuraminidase / Q000378:metabolism*; D009522:Newcastle disease virus / Q000276:immunology; D009975:Orthomyxoviridae / Q000276:immunology
chemical_list: D000906:Antibodies; D009439:Neuraminidase