The Latest: Fauci cautiously optimistic on COVID vaccine

UNITED NATIONS — The leading U.S. infectious disease expert says he is cautiously optimistic that a coronavirus vaccine with some degree of effectiveness will be successfully developed by the end of the year or the beginning of 2021.Dr. Anthony Fauci told a U.N. event Wednesday that Moderna’s vaccine will go into Phase 3 trials “sometime at the end of July and then others will follow in August, September and October.”He says Moderna’s vaccine has shown “very p