title: Production of extracellular antigen in culture supernate by Haemophilus gallinarum.
mesh_terms: D000818:Animals; D000942:Antigens, Bacterial / Q000008:administration & dosage; D002645:Chickens; D003470:Culture Media; D006190:Haemophilus / Q000276:immunology*; D006192:Haemophilus Infections / Q000276:immunology / Q000517:prevention & control; D006384:Hemagglutination; D006358:Hot Temperature; D007109:Immunity
chemical_list: D000942:Antigens, Bacterial; D003470:Culture Media