She's not the chair of the ACIP. She's not even a voting member. I dug back as far as 2014. She's never been a voting member or chair.
Source: https://www.cdc.gov/vaccines/acip/members/index.html
She is, however, extremely dangerous because she represents the IDSA (the Infectious Disease Society of America) which is the organization that writes all of the treatment guidelines for various infectious diseases. Her voice, by the weight of her position, carries weight. I can assure you having sat through enough conferences that her opinions are widespread among medical professionals. They're not afraid to say this kind of thing openly and without rebuke. In decades past, she would've been lit up like a Christmas tree and publicly humiliated for that, but now, there are a lot of powerful people who wear white coats who agree with it.
[–] 26700733? 0 points 1 point 1 point (+1|-0) ago
I'll let my immune system handle Covid if I should get it again, already had the virus three months back.