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群体免疫
释义
群体免疫
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医学
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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center manifold
center manifold theorem
center mass system
center method
center of a ball
center of a circle
center of a conic
center of activity
center of a dynamical system
center of affinity
center of a graph
center of a group
center of a group algebra
center of a lattice
center of a Lie algebra
center of an algebra
center of a neighborhood
center of an ellipse
center of an ellipsoid
center of a quadric
center of area
center of a representation
center of a ring
center of a set
center of a sphere
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