Experts at the U.S. Centers for Disease Control say roughly 90 percent of children in Chicago have been vaccinated against measles, mumps and rubella.
Illinois requires students enrolling in school to be up-to-date on immunizations. Students enrolling in kindergarten for the first time in an Illinois school must have an eye exam by a licensed optometrist or a medical doctor.
It doesn’t happen very often. Last year there was a baby born with it in Chicago, and now an international student at Valparaiso University has come down with it.