钩体菌苗(死)免疫人体后可使之产生较高相应抗体并维持一定时间,从而达到预防作用。猪是钩体病的宿主和传染源之一,能否通过免疫途径,使其体内抗体增高且保持一定水平,来预防猪钩体病,特别是预防其带菌、排菌,为此,我们试验观察了幼猪经菌苗免疫后一个月内血清抗体的变化,为进一步试验提供科学依据。 Leptospira vaccine (dead) after immunization of the human body can make a high corresponding antibody and maintain a certain time, so as to achieve the preventive effect. Pigs are one of the host and source of leptospirosis. Whether pigs can be prevented from leptospirosis can be prevented by increasing the antibody level in the body through immunization, so as to prevent their carriage of bacteria and bacteria. To this end, we test The changes of serum antibody in one month after vaccination of young pigs were observed, which provided a scientific basis for further testing.