美国卫生专家：追踪接触者是抗疫最强大武器_BEC初级作文

美国卫生专家：追踪接触者是抗疫最强大武器

美国全国性病科主任联盟负责人戴维·C·哈维说：“在美国，人们向来对公共卫生系统缺乏信任。”长达40年的“塔斯基吉实验”阻止贫困的黑人梅毒患者接受治疗。自该丑闻被曝光以来，官员们就必须付出额外努力才能与那些非洲裔和拉美裔患者取得联系。在目前受到新冠肺炎影响的人群中，这些人群的比例异常地高。

Still, as states relax restrictions, public health experts say wide-scale contact tracing is the price that must be paid to reopen safely without reverting to the blanket shutdowns that put nearly 40 million Americans out of work. Time is of the essence, they say, taking advantage of the drop in cases resulting from the shutdowns.

尽管如此，公共卫生专家说，随着各州放松限制措施，要想安全地重启经济、避免再次陷入导致近4000万美国人失业的全面封锁状态，大规模追踪接触者是必不可少的。他们说，时间是关键因素，要利用好病例数量因封锁措施而下降的这段时机。

“Contact tracing is finding the next generation before they happen, getting ahead of that transmission cycle to stop it,” said Emily Gurley, an epidemiologist at the Johns Hopkins Bloomberg School of Public Health and the instructor of the school’s new six-hour online contact-tracing course. Gurley doesn’t believe the strategy will stop transmission but that, in concert with testing and other measures, it can prevent the disease from spreading exponentially.