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

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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. Spain reports record 38,869 new cases – as it happened  The Guardian
5. Brazil researchers now say China’s Sinovac vaccine is 50% effective — lower than announced earlier  CNBC
6. View Full Coverage on Google News

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