Jan. 28, 2021
U.S. is in a 'race against time' with new coronavirus variants, scientists warn
The United States is in a race against time to vaccinate as many people as possible before other potentially more worrisome variants of the coronavirus emerge, according to experts. "The reason we're doing this phased approach is because there is limited supply," said Deepta Bhattacharya, an associate professor of immunobiology at the University of Arizona. "By and large, if you can fix the supply issues, you can vaccinate as many people as fast as possible."