The Pennsylvania Department of Health is now aware of at least 13 people infected with E. coli O157:H7 who swam in the lake at Cowans Gap State Park.

In a brief e-mail statement this afternoon, press aide Thomas Hostetter said the current numbers include six people from Franklin County, four from Lancaster County, and one from Huntingdon County. There are also two Maryland residents who got sick after visiting the park.

Hostetter said the E. coli outbreak at Cowans Gap remains under investigation, and that more updates will be released as they become available.