It will be weeks until we're certain that Omicron is significantly more transmissible in the uninfected/previously infected/vaccinated groups than Delta.

But lots of preliminary data suggests it will be. That's why Omicron was designated a variant of concern. I think this guy has made a pretty compelling case. https://twitter.com/DrEricDing

What do you think the chances are that Omicron is more than 20% more transmissible among the 1) infected : 85% 2) vaccinated : 80% 3) unvaccinated/uninfected : 75%