An earlier version of this article said the study in South Africa was based on 211,000 coronavirus cases, of which 78,000 were attributed to omicron, according to an initial news release distributed by Discovery Health. The story has been corrected to reflect subsequently released information from the company indicating that the positive cases the study attributed to omicron were far fewer than it initially reported.
Democracy Dies in Darkness
Omicron variant more resistant to vaccine but causes less severe covid, major South African study concludes
By Lesley Wroughton
Updated December 14, 2021 at 6:13 p.m. EST|Published December 14, 2021 at 4:14 a.m. EST