After months of insisting on the necessity for a vaccine, and after Trump fas-tracked vaccine research, and now that several promising vaccines are on the horizon, Fauci is suddenly warning against vaccines, questioning their efficacy, and even suggesting they could be dangerous. With his tendency to constantly move the goalposts, Fauci is showing himself to be a man of the left.
There's a few solid possibilities now in phase three trials and there's a couple promising ones in Europe as well.