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对117名使用S_2菌苗免疫牲畜的兽医人员进行了临床症状、体征及血清抗体等观察。通过SAT、RBPT、ELISA三种试验对接触S_2菌苗前、后的血清抗体检测,证实了使用S_2菌苗后一个月的抗体
The clinical symptoms, signs and serum antibody of 117 veterinarians vaccinated with S_2 vaccine were observed. Through SAT, RBPT, ELISA three kinds of tests before and after contact with S_2 vaccine serum antibody test confirmed the use of S_2 bacilli one month after the antibody