Masked students cross an intersection on the campus of Ball State University in Muncie, Ind., Thursday, Sept. 10, 2020. College towns across the U.S. have emerged as coronavirus hot spots in recent weeks as schools struggle to contain the virus. Out of nearly 600 students tested for the virus at Ball State, more than half have returned been found positive, according to data reported by the school. Dozens of infections have been blamed on off-campus parties, prompting university officials to admonish students. (AP Photo/Michael Conroy)