Dr. Anthony Fauci, director of the National Institute of Allergy and Infectious Diseases, said Tuesday he is cautiously optimistic that a vaccine will be proven safe and effective by the end of the year. But he said that’s unlikely to happen by Election Day.
President Trump has said he thinks a Covid-19 vaccine could be ready by Election Day, Nov. 3, but Fauci said this is unlikely.
“The only way you can see that scenario come true, is if there are so many infections in the clinical trial sites that you get an efficacy answer sooner than you would have projected,” Fauci said during an event sponsored by Research! America.
“It's unlikely that we'll have a definitive answer at that time,” he added. “More likely by the end of the year.”
There are currently three vaccine candidates in large-scale, Phase Three clinical trials in the US.
“You have a lot of candidates in play, which really is the reason why we're optimistic that we will be successful with one or more, and that will likely start taking place by the end of the calendar year 2020,” said Fauci.