EXPLAINER: What's known about 'stealth' version of omicron?
ABC News
Scientists say the omicron descendant gaining ground in some parts of the world may be 1 1/2 times more contagious than the original omicron variant
Scientists and health officials around the world are keeping their eyes on a descendant of the omicron variant that has been found in more than 50 countries, including the United States.
This version of the coronavirus, which scientists call BA.2, is widely considered stealthier than the original version of omicron because particular genetic traits make it somewhat harder to detect. Danish scientists reported this week that preliminary information suggests it may be 1 1/2 times more contagious then the original variant.
But scientists say there’s a lot they still don’t know about it, including whether it causes more severe disease.
WHERE HAS IT SPREAD?
