Most spread, including omicron, is small (unmasked) friends-and-family gatherings. NY did contact tracing to find that. Those are extended, in-door gatherings w

Most spread, including omicron, is small (unmasked) friends-and-family gatherings. NY did contact tracing to find that. Those are extended, in-door gatherings without masks and with close proximity. I don't think omicron's spread says /anything/ about the efficacy of masks.