Single-dose vaccine tested as US experts say no corners cut
September 23, 2020
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...