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输入继发病例
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输入继发病例
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理学
流行病与卫生统计
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imported secondary cases
输入继发病例
相对于当地获得的疾病而言,病例通过陆地、海洋或者航空运输进入某地区,与输入病例有明确接触史而感染的输入二代病例。
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River and Mountain Scenery in Autumn
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river basins in China
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