Alliance for Pandemic Preparedness

August 25, 2020

Time Course of a Second Outbreak of COVID-19 in Beijing, China

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  • After 56 consecutive days of no local transmission events of COVID-19 in Beijing, a new case was diagnosed on June 11, triggering an outbreak alert. The first 2 confirmed cases were found to have epidemiologic links to a local market, which was shut down on June 12. Among the 368 people who tested positive and were subsequently isolated and treated via contact tracing, 74% had epidemiologic links to the market.

Wu et al. (Aug 24, 2020). Time Course of a Second Outbreak of COVID-19 in Beijing, China, June-July 2020. JAMA. https://doi.org/10.1001/jama.2020.15894