BY ERIC KOLENICH Richmond Times-Dispatch The pausing of the Johnson & Johnson vaccine could hinder local health departments' ability to fully vaccinate college students by the end of the spring semester next month. As local health departments switch from the one-shot Johnson & Johnson to the two-shot Pfizer and Moderna vaccines, students may receive their first shot at college and their second shot in another health district or state after they've returned home for the summer. The College of William and Mary informed students Tuesday that if they move home in between shots, and they live in Virginia, they can present their vaccine card to other health districts to schedule a second shot.