The head of the FDA is now looking at whether it will still approve COVID-19 vaccines for next winter, citing a lack of data on booster shots. "We're taking a look. I can't comment on any particular application. As you know, we have a bunch of applications for those booster shots," FDA Commissioner Dr. Marty Makary says many healthcare workers did not get the last round of COVID-19 vaccine booster shots, calling it "a bit of a public trust problem."