“Our vaccines are working exceptionally well,” Walensky told CNN in an interview on Thursday, Aug. 5. “They continue to work well for Delta, with regard to severe illness and death – they prevent it. But what they can't do anymore is prevent transmission.”

I did not interpret her statement or misunderstand it. I quoted her directly.

Also, R0 with Omicron is on par with measles at 7-10, is it not?