Davis R B, Rimler R B, Kleven S H
Avian Dis. 1976 Jul-Sep;20(3):556-62.
Chickens vaccinated with two doses of a bivalent Haemophilus gallinarum bacterin were protected against seven strains of the organism. Vaccinated and unvaccinated birds with antibody to Mycoplasma gallisepticum had increased HI titers when challenged with H. gallinarum. Birds positive for antibody to Mycoplasma gallisepticum which were not challenged showed no increase in HI titer.
用两剂双价鸡嗜血杆菌菌苗免疫的鸡对该菌的七个菌株具有抵抗力。用鸡嗜血杆菌攻击时，接种过疫苗且对鸡败血支原体有抗体的鸡和未接种疫苗的鸡的血凝抑制（HI）效价均升高。未受到攻击的对鸡败血支原体抗体呈阳性的鸡的HI效价没有升高。
