美国疾控中心再次修改指导意见，称无症状人群也要进行疫情检测

在公共卫生官员的强烈抗议之后，疾病控制和预防中心周五再次更改了指南，称与Covid-19接触的无症状者应接受检查。更新后的指南与以前的建议更加一致。

疾控中心周五在其网站上发布消息称："如果你已经密切接触，比如在距离有记录的SARS-CoV-2感染者6英尺之内至少15分钟，就算没有症状，也需要进行检测。"这里指的是导致Covid-19的病毒。

The Centers for Disease Control and Prevention on Friday changed its guidance again after an outcry from public health officials, saying asymptomatic people who have come in contact with Covid-19 should be tested. The updated guidance aligns more closely with previous recommendations.

"If you have been in close contact, such as within 6 feet of a person with documented SARS-CoV-2 infection for at least 15 minutes and do not have symptoms, you need a test," the CDC posted on its website Friday, referring to the virus that causes Covid-19.  source

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