Amid the continuing measles outbreak across the country and in Pennsylvania, the Centers for Disease Control and Prevention is recommending some adults who have already been vaccinated to get a booster shot. The first measles vaccines were introduced in 1963, and a small number of people born ...

Pennsylvania had 12 confirmed cases of measles among commonwealth residents as of Monday, and another two cases involving visitors to the state were reported, according to the state Department of Health. The DOH said it is monitoring the measles cases closely. Eight are in Lancaster County, ...