- Chinese Covid-19 Vaccine Far Less Effective Than Initially Touted in BrazilThe Wall Street Journal
- New Brazil data shows disappointing 50.4% efficacy for China’s CoronaVac vaccineYahoo News
- Indonesia starts COVID-19 vaccination campaign with WidodoABC News
- China’s COVID-19 shot has four wildly different efficacy ratesThe Japan Times
- CoronaVac’s Overall Efficacy in Brazil Measured at 50.4%Bloomberg
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