Why scientists are tracking BA.2, a stealth subvariant of Omicron that's on the rise

Unlocking the mysteries behind Omicron's unique set of mutations will be key to understanding how this virus evolves and spreads — particularly as a tougher-to-detect subvariant called BA.2 is taking off in various countries.

from CBC | Health News https://ift.tt/3H6wjXi