
CHICAGO (WLS) -- A fourth case of measles has been reported in Illinois for this year.
The state tracking dashboard showed the new case was reported Friday.
ABC7 is working to find out where that case occurred.
Two cases have been diagnosed in Cook County this year, and one in southern Illinois.
READ MORE | Health officials report first measles cases in Cook County this year, including 1 in Chicago
Earlier Friday, the CDC reported that the number of cases nationwide has now surpassed 900.
There are cases reported in 26 states. The majority are in Texas.