Dr. Moncef Slaoui is one of two men that President Trump has put in charge of Operation Warp Speed, which has a goal of developing a COVID-19 vaccine by January 2021. The former GlaxoSmithKline executive said having states prepared is "the right thing to do" in case a vaccine does become ready, but he acknowledged that having a vaccine by October or November was "extremely unlikely." "There is a very, very low chance that the trials that are running as we speak could read before the end of October," Slaoui said.