China was ahead in the global race to develop coronavirus vaccines with the most candidates in late stage of trials earlier this year. Its first approval of a homemade shot for the general public came on Thursday, yet with no detailed efficacy data.

The following is what we know about China's vaccine development, efficacy data, and approval timeline.

Which are the most advanced?

Five vaccines from Sinovac Biotech, China National Pharmaceutical Group (Sinopharm), CanSinoBIO, and the Chinese Academy of Sciences are in late-stage clinical trials. None of them have released detailed efficacy data.

Authorities approved a vaccine developed by...