'There's a tsunami coming' for unvaccinated people as Covid-19 cases rise in the US

Forget the waves of Covid-19, one expert says "there's a tsunami coming" for unvaccinated Americans as the Delta variant continues to fuel new cases and hospitalizations and the Omicron variant is spreading rapidly and could soon swamp hospital systems.

"This Omicron variant is extraordinarily contagious. It's as contagious as measles, and that's about the most contagious virus that we've seen," CNN medical analyst Jonathan Reiner told CNN's Pamela Brown Saturday.