FILE - In this March 29, 2021, file photo, people wearing face masks as a precaution against the coronavirus wait in line to receive COVID-19 vaccines at a site in Philadelphia. Nearly half of new coronavirus infections nationwide are in just five states, including Pennsylvania â a situation that puts pressure on the federal government to consider changing how it distributes vaccines by sending more doses to hot spots. (AP Photo/Matt Rourke, File) Photo: Associated Press By RUSS BYNUM and MICHELLE R. SMITH Associated Press Nearly half of new coronavirus infections nationwide are in just five states â a situation that is putting pressure on the federal government to consider changing how it distributes vaccines by sending more doses to hot spots.