(A) Change of TSCI in Wuhan from December 2019 through May 2020 in the form of a percentage of the average pre-lockdown level in December 2019 (100%). (B) The enlarged view of (A) on the part of TSCI between 0% and 2%. (C) The proportions of TSCI that occurred in different coloured categories of places in December 2019. Different colours in (A) and (B) represent the same as those in (C). The two vertical lines in (A) denoting the lockdown and lockdown-lifting dates are only applicable to Wuhan as other cities announced the two dates differently. Credit: WorldPop, University of Southampton

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Combined vaccination and physical distancing enough to prevent future COVID-19 surges

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