A U.S. Army soldier from the 2nd Armored Brigade Combat Team, 1st Infantry Division, immunizes Jacklina Mendez with the COVID-19 vaccine at the Miami Dade College North Campus on March 09, 2021 in North Miami, Florida.Joe Raedle | Getty ImagesEven as the pace of vaccinations accelerates in the U.S., Covid-19 cases are increasing in 21 states and highly infectious variants are spreading as governors relax restrictions on businesses like restaurants, bars and gyms.Public health officials warn that while roughly 2.5 million people nationwide are receiving shots every day, infection levels have plateaued this month and some states have failed to reduce …
