Jan. 20, 2021 — After 2 months of record-breaking numbers, COVID-19 cases appear to be flattening across California. But now, a new worry has emerged: A California-specific variant of the coronavirus.

Three previously identified variants have been termed “variants of concern” because each contains clusters of mutations that appear to make the virus more contagious and may help it evade the body’s immune defenses. These were first identified in the U.K. and South Africa, with the third showing up in Brazil and Japan.

Read more at WebMD…