One more case of measles has been confirmed in suburban Cook County, bringing the total to 10, officials said Thursday.
The most recent diagnosis involves another child connected to the KinderCare in Palatine, said Amy Poore, spokeswoman for the Cook County Department of Public Health, in an email.
According to the department's website, nine of the measles cases are connected to the day care center. Two of the 10 are adults, while the rest are children.
The additional case comes after news that one of the already counted cases is a student at Elgin Community College.
Health officials are investigating these cases, but at this time the overall risk of getting measles is low and transmission is not widespread, the website said.
In recommendations to parents, the department advises that vaccination is "critical to curbing the ongoing transmission of measles and it's the best way to protect yourself and your family."
McHenry County health officials also have underscored the importance of vaccinations in the recent weeks.