The Illinois Department of Public Health is urging University of Illinois students to get vaccinated to help curb a growing mumps outbreak.
The department says 69 cases have been reported on the Urbana-Champaign campus and new infections continue to be seen.
They say a week earlier about 50 cases were known.
Director Nirav Shah says most of the infected people have received two rounds of the measles-mumps-rubella vaccine but believes a third round could help control the outbreak.
The campus McKinley Health Center recommends students planning to take classes this fall get a vaccine booster.
Classes at the University of Illinois start August 24th.
Mumps is a highly contagious viral illness characterized by swollen jaws and puffy cheeks.