coronavirus pandemic

Should You Be Concerned About New COVID Variant BA.2?

It’s been called “stealth omicron” or “deltacron.” A new subvariant of the COVID-19 virus is making headlines, so we talked to NBC News medical correspondent Dr. John Torres to learn more. He explained how the variant “plagiarizes” from the Omicron and Delta variants that previously caused surges, and why this may not cause a new surge here in the U.S.