Estimating the transmission dynamics of SARS-CoV-2 Omicron BF.7 in Beijing after the adjustment of zero-COVID policy in November - December 2022 - Nature Medicine

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With the lifting of the ZERO-COVID policy and requirements governing reporting case numbers in China, it has become imperative to estimate the dynamics and cumulative infection rate of SARSCoV2 to help guide public health responses

of the predominant SARS-CoV-2 variant Omicron BF.7 in Beijing in November – December 2022 by fitting a transmission dynamic model parameterized with real-time mobility data to the daily number of new symptomatic cases on November 1–11 and the proportion of individuals who participated in online polls on December 10–22 and self-reported to have been test-positive since November 1. After China’s announcement of ‘20 measures’ to transition from zero-COVID, we estimated thatincreased to 3.

Surveillance programmes should be rapidly set up to monitor the evolving epidemiology and evolution of SARS-CoV-2 across China.

 

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