MADISON, WI (AP)-- State health officials say the number of confirmed cases of enterovirus 68 has climbed to five in Wisconsin.
The Wisconsin Department of Health Services says most of the cases involve children, many with asthma or wheezing. Mild symptoms include a cough, runny nose, fever and muscle ache. The department did not have information on the ages, towns or genders of the five patients.
Across the country, four people who were infected with the severe respiratory illness have died, but health officials say it's unclear what role the virus played in the deaths.
The Centers for Disease Control and Prevention in Atlanta says the virus has sickened at least 500 people in 42 states.