“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.

约翰斯·霍普金斯-布隆伯格公共卫生学院流行病学家、该学院最新版6学时接触者追踪线上课程导师埃米莉·格利说：“追踪接触者就是预先找到下一代病例，要赶在传播周期之前阻止它。”格利认为这一策略并不能阻止疾病传播，但配合检测等措施，可阻止新冠肺炎加速扩散。

in concert with：和…相呼应；与…合作

exponentially [ˌekspəˈnenʃəli]：adv.以指数方式

Right now, though, the virus is showing signs of taking the lead again, as states relax restrictions on large gatherings and welcome customers back into bars, restaurants and movie theaters. Cases are on the rise in more than 20 states across the country, with new highs in Arizona, Texas and Florida.

不过就目前而言，随着各州放松对大型聚会的限制并鼓励消费者重返酒吧、餐厅和电影院，病毒呈现出卷土重来的迹象。在美国20多个州，确诊病例再次增长，亚利桑那州、得克萨斯州和佛罗里达州的确诊病例增量达到新高。

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