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众所周知,在降低布氏菌病患病率的医学——卫生学系统措施中,有感染危险性职业人群的预防接种有着重要的作用。但多次接种活的布氏菌苗,被接种者机体常伴有明
It is well-known that immunization in occupationally-infected occupations plays an important role in the medical-health system measures to reduce the prevalence of brucellosis. But many live inoculation of brucellosis vaccine, often accompanied by the body of the vaccinated