At the height of the Omicron wave in early January, the United States was administering an average of 2.5 million tests per day. That number has dropped to an average of about 540,000 at the start of this week.Credit... Spencer Platt/Getty Images
About 30,000 marathoners from 122 countries and all 50 U.S. states will hit the streets on Monday in . . .
October 3, 2022