The Rock County Public Health Department is warning citizens that they may have been exposed to measles by a person who lives in Dane County that recently tested positive.

The health department says that person spent time in Rock County while they were infectious.

People who were at Kwik Trip in Milton between 2:45 p.m. and 5:00 p.m. on April 21st, or SSM Health St. Mary’s Hospital in Janesville on April 22nd from 1:00 until 5:00 p.m. or April 23rd between 8:00 a.m. and 6:00 p.m. should check their vaccination status.

Anyone who is unvaccinated and was at these locations during these dates and times should contact the Rock County Public Health Department.