BA.2 subvariant sparks uncertainty among virus experts
Clip: 02/18/2022 | 4m 32s | Video has closed captioning.
The omicron “stealth” BA.2 subvariant — a distant, highly-mutated cousin of the now-dominant omicron strain of the coronavirus -- is now lurking in noses across 47 states. And new lab studies show it’s 30% to 50% more contagious than omicron. According to CDC estimates, BA.2 generated 4% of American COVID-19 infections as of last week, and 6% in the New Jersey/New York region.
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