The unseen and pervasive threat of COVID-19 throughout the US
medRxiv（2020）
摘要
AbstractFor each US county, we calculated the probability of an ongoing COVID-19 epidemic that may not yet be apparent. Based on confirmed cases as of April 15, 2020, COVID-19 is likely spreading in 86% of counties containing 97% of US population. Proactive measures before two cases are confirmed are prudent.
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关键词
pervasive threat
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