He doesn't specifically say Covid at beginning, but...
The Vigilant Fox
@VigilantFox
Dr. Fauci opens up the possibility that the COVID-19 vaccine could be making people more likely to be infected by the virus.
"This would not be the first time, if it happened, that a vaccine that looked good in initial safety actually made people worse."
0:03 / 0:27
11:06 AM · Dec 13, 2021·
https://mobile.twitter.com/vigilantfox/status/1470455120513142792