The rabbits injected VW aEV 76 paris was able to produce antibody against Y. pestis. The antibody had stronger bactericidal activity than that of the ordinary alive EV vaccine.

• 用脂质体包裹的VW?aEV76paris株免疫家兔，家兔体内可产生杀菌性抗体，该抗体的杀菌效果明显优于单独以EV兰活菌苗的血清抗体，但在接种部位易形成肉芽肿病灶。