California has identified its first cases of a worrisome coronavirus variant that was first discovered in South Africa. The variant, known as B.1.351, was confirmed in the San Francisco Bay Area, Calif. Gov. Gavin Newsom announced this week.

California has identified its first cases of a worrisome coronavirus variant that was first discovered in South Africa. The variant, known as B.1.351, was confirmed in the San Francisco Bay Area, Calif. Gov. Gavin Newsom announced this week.