Experts warn vaccine hesitancy will delay herd immunity this year

May 3rd, 20210 WASHINGTON, D.C. — Even though more than 44 percent of the U.S. population has had at least one dose of a COVID-19 vaccine, with about 2.4 million people receiving shots daily, medical experts are warning that it could take the country even longer to get back to normal if more people aren’t willing to take a vaccine. Over the...