What do we know about “stealth omicron" so far?

What do we know about “stealth omicron" so far?

2 years ago
Anonymous $xqL1ZTchGQ

https://apnews.com/ba500eee4616f55e5f3174ee81b0a5c5

What do we know about “stealth omicron" so far?

It's an extra-contagious version of the omicron variant, but it doesn’t seem to cause more severe disease.