Do we know who all was there?
From a quick browse on Twitter, it seems like only members of the House attended.
We can assume Gosar was there, along with Gaetz, who also retweeted Meadows.
Who else?
https://www.cdc.gov/vaccines/acip/meetings/downloads/slides-2020-12/slides-12-19/05-COVID-CLARK.pdf
7 out of every 250 people vaccinated have had debilitating health problems arise.
That's about 1 in 36.
So if you get the vaccine, and you're the 36th one, you will have something majorly wrong with you due to receiving it.
Straight from CDC.gov