January 13, 2021 China News Chinese Covid-19 Vaccine Is Far Less Effective Than Initially Touted in Brazil Source: upstract.com Key Topics in this News Article: BrazilChineseCovid-19Vaccine News Snapshot: Chinese Covid-19 Vaccine Is Far Less Effective Than Initially Touted in Brazil SYNDICATED 45 minutes ago View Original Full News → News Timeline:Track the development of related news across the Internet. Timeline is being generated. Please check back and refresh this page soon.