But it’s highly unlikely even the bare minimum of clinical trial data from the administration’s “Operation Warp Speed” candidates will be available by November, making any possible attempt to speed up a vaccine before the election extremely difficult.

“I think there is a sense among many people on the inside that this is such a tempting thing to do, to put your hands in the Warp Speed bucket, pull out one or two vaccines and say, ‘Look, these are safe,’” vaccine expert Paul Offit of Children’s Hospital of Philadelphia, who sits on the FDA vaccine advisory committee, told BuzzFeed News. “I cannot imagine that you would have data that shows efficacy and in a period of time that would be over the next few months.”…

“If a vaccine or any medication is pushed out there and you find out 6 or 12 months later that there are health consequences or that it doesn’t work, we will lose the confidence in our scientific ability — not just on this but on anything in the future,” Murray told BuzzFeed News. “There is high stakes on this. We’ve got to get it right.”