Omicron “incubated in an immunocompromized person for months or serially passaged in a lab”

Some interesting developments on the possible origins of the new Omicron variant, B.1.1.529… The @nextstrain https://t.co/wVE7ubYBoy focal build for 21K (B.1.1.529) is now live.https://t.co/UD1WPcJphP As previously, the long branch leading […]