In an interview with CNBC, Fauci was asked how many more COVID-19 vaccine doses, or
boosters, will be needed. “The answer is: we don’t know. I mean, that’s it … It is likely that we’re not done with this when it comes to vaccines,” Fauci said in response. The comments from Fauci come as several Republican lawmakers (Rand Paul, Jim Jordan and Chip Roy) have stepped up their criticism of the public health official in recent days.