title: Haemophilus infections in chickens. 2. Types of Haemophilus paragallinarum Isolates from chickens with infectious coryza, in relation to Haemophilus gallinarum strain no. 221.
mesh_terms: D000818:Animals; D002645:Chickens; D006190:Haemophilus / Q000302:isolation & purification*; D006192:Haemophilus Infections / Q000382:microbiology / Q000662:veterinary*; D011201:Poultry Diseases / Q000382:microbiology*; D012703:Serotyping