a form of acquired immunity in which the body produces its own antibodies against disease-causing antigens
例句与用法
1.
Natural active immunity 天然性自动免疫
2.
The mouse model of hepatic egg granuloma of schistosoma japonicum confirmed that np30 has sensitizing effect on formation of hepatic egg granuloma , active immunity in sheeps and mice with np30 can induce good protecti on against infection with schistosoma cercariae and reduces immunopathologic damage to host , np30 plays a significant down - modulatory role to hepatic granuloma and fibrosis 以往的研究业已证明np30对虫卯肉芽肿的形成具有致敏作用，并有十分显著抗虫卵肉芽肿肝纤维化作用，用np30主动免疫小鼠、山羊可减轻日本血吸虫对宿主造成的免疫病理损害。
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