title: Haemophilus somnus complex: in vitro interactions of Haemophilus somnus, leukocytes, complement, and antiserums produced from vaccination of cattle with fractions of the organism.
mesh_terms: D000372:Agglutination Tests; D000818:Animals; D000917:Antibody Formation; D000942:Antigens, Bacterial / Q000302:isolation & purification; D001770:Blood Bactericidal Activity; D002417:Cattle / Q000276:immunology*; D003165:Complement System Proteins; D006190:Haemophilus / Q000276:immunology*; D007106:Immune Sera; D007962:Leukocytes / Q000276:immunology*; D010587:Phagocytosis; D014611:Vaccination / Q000662:veterinary*
chemical_list: D000942:Antigens, Bacterial; D007106:Immune Sera; D003165:Complement System Proteins