WASHINGTON (AP) - A huge international study of a COVID-19 vaccine that aims to work with just one dose is getting underway as top U.S.
health officials sought Wednesday to assure a skeptical Congress and public that they can trust any shots the government ultimately approves.Hopes are high that answers about at least one of several candidates being tested in the U.S.
could come by year's end, maybe sooner.“We feel cautiously optimistic that we will be able to have a safe and effective vaccine, although there is never a guarantee of that,” Dr.
Anthony Fauci, infectious disease chief at the National Institutes of Health, told a Senate committee.President Donald Trump is pushing for a faster timeline, which many experts say is risky and may.