New COVID shots: 5 things to know after CDC’s approval 

Americans will be able to receive an updated COVID-19 vaccine as early as Wednesday after the Centers for Disease Control and Prevention (CDC) endorsed the shot for all Americans at least 6 months old. The new shots from Moderna and Pfizer-BioNTech will hit the market just as the U.S approaches the fall and winter respiratory virus season. They arrive along with new treatments to protect infants and older adults from respiratory syncytial virus (RSV).Here's what to know:The vaccine protects