Report: Zero-Covid Policies Lower Population-Wide Immunity

Russia, Singapore, Brazil estimated to have highest immunity rates, China has lowest
A health workers takes a swab (C) during Covid-19 tests of the entire population in Macau on November 1, 2022. (Photo by Eduardo Leal / AFP) (Photo by EDUARDO LEAL/AFP via Getty Images)

At a glance

  • An analysis from the Institute of Health Metrics and Evaluation at the University of Washington’s School of Medicine found that harsh lockdowns in pursuit of “zero-COVID” have led to lower population-wide immunity.
  • China currently has more than 230 million residents in lockdown and is estimated by researchers to have the lowest level of immunity to COVID-19 in the world.
  • While just 17.2 percent of the Chinese population has immunity to COVID-19, Russia, Singapore, and Brazil have the highest immunity rates at 74.5 percent, 69.9 percent, and 68 percent, respectively.

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