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群体免疫
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群体免疫
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群体免疫
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herd immunity
群体免疫
根据某种传染病流行区域与人群发病等流行病学特点,在人群中进行大规模的疫苗或菌苗接种以预防和控制其传播流行的措施。又称社区免疫。
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longitudinal zonation
longitudinal gradient
Long Jiang
Longjiang Hydro-Junction
Longjiang opera
Longjiang Opera Art Center of Heilongjiang Province
Longjiangsanxia National Forest Park
Longjiang Xian
Long Jiefeng
Longji large leaf species
Longjing 43
Longjing Shi
Longjing tea
Longji tea
long jump
long jump of Summer Deaflympics
long jump of Summer Paralympics
long jump of Summer Special Olympics
Longju opera
Longju Opera Theatre of Gansu Province
Longkaikou Hydropower Station
Longkanshoujing
Longkou Dongjiawa Ancient Pagoda Tree
Longkou Gang
Longkou Museum
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