新华社和中科院证明无症状感染者其实无传播能力https://baijiahao.baidu.com/s?id=1669003857959041280&wfr=spider&for=pc&searchword=%E6%96%B0%E5%8D%8E%E7%A4%BE%20%E6%84%9F%E6%9F%93%E8%80%85%20%E8%88%8D%20%E9%98%B4%E6%80%A7

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