8 Mumps Cases Identified At 2 McHenry County Locations: MCDH - Crystal Lake, IL Patch

8 Mumps Cases Identified At 2 McHenry County Locations: MCDH  Crystal Lake, IL Patch

8 Mumps Cases IDd At 2 McHenry County Locations - Crystal Lake-Cary, IL - The McHenry County Department of Health said they, the IDPH and the two ...