China says it has been injecting key workers with a coronavirus vaccine candidate for a month

3:01am PDT - August 24th, 2020    cdc guidelines - Business Insider

• China has been giving essential workers an experimental coronavirus vaccine since July 22, a top health official said Sunday.
• Zheng Zhongei, a top official at the National Health Commission, told the state-run CCTV broadcaster that "emergenc…