Amid fresh signs of sagging statewide demand for the COVID-19 vaccine, Pennsylvania officials on Wednesday encouraged hundreds of thousands of college students to get their shots before they go home for summer. Gov. Tom Wolf appeared in State College with the president and head football coach at Penn State University to pitch younger people on the benefits of getting inoculated against the coronavirus. Penn State, for now, will not require students to be vaccinated before returning to campus in the fall, but left open the possibility.