Was Omicron Engineered?

I'm highly skeptical, but take nothing for granted anymore.

So to sum this up:
1) SARS2 Omicron genome looks like it was "separated/frozen" between June 2020 and late summer 2021 -
This has never before been seen in nature, only in lab leaked pandemics https://t.co/y5kF8hPxlX

— valentin bruttel (@VBruttel) December 3, 2021