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Brazil downgrades efficacy of Chinese COVID-19 vaccine | TheHill – The Hill

  1. Brazil downgrades efficacy of Chinese COVID-19 vaccine | TheHill  The Hill
  2. Chinese Covid-19 vaccine far less effective than initially claimed in Brazil, sparking concerns  CNN
  3. Sinovac: Brazil results show Chinese vaccine 50.4% effective  BBC News
  4. Opinion: State’s vaccine priority plan a barrier to herd immunity  OregonLive
  5. Brazil researchers now say China’s Sinovac vaccine is 50% effective — lower than announced earlier  CNBC
  6. View Full Coverage on Google News