What to know about BA.2 – the newest Covid Omicron variant
It's called the "stealth" variant, but there's nothing particularly stealthy about it. Researchers are working to parse whether it is a new threat. As coronavirus case numbers in the U.S. show early signs of tapering, scientists are keeping a watchful eye on a newly identified version of the omicron variant, nicknamed "stealth omicron," that is [...]








