WHEATON, Ill. (AP) -- DuPage County Health Department officials say the number of reported mumps cases at Wheaton College now stands at 47, with five more under investigation.
In addition, Elmhurst College is reporting its first case of the mumps.
Last week, Benedictine College in Lisle also reported a case of the highly contagious viral infection.
A total of 72 cases of mumps have been reported in DuPage so far this year, with the majority at Wheaton College.
Health Department spokesman Dave Hass says official expect the number of cases to increase at the three schools.
Hass today says the county has not established a link between the cases at the three colleges, but officials believe the possibility exists.
This year, Illinois has reported more than 600 mumps cases. That's a huge jump from the previous average of ten cases a year.