A Better Picture of a Vaccine From China
Photographer: Lintao Zhang/Getty Images
The hazy picture surrounding an experimental vaccine from China became a little clearer this week.
Developed by Sinovac Biotech Ltd., the two-dose vaccine was found to be 78% effective against Covid-19 in late-stage trials in Brazil. It's the most definitive result so far on the shot’s efficacy after previous data sparked confusion and doubt. The results offered some promising news at a time when infections and deaths are surging around the globe.