Matthew Perrone | AP Health Writer

Outbreak of diarrhea-causing parasite linked to 4 more states, including PA

Matthew Perrone | AP Health Writer

Federal health officials have linked four more states to an outbreak of a diarrhea-causing parasite: Illinois, Kansas, Oklahoma, and Pennsylvania. Previously the agency’s investigation included five states: Indiana, Kentucky, Michigan, Ohio and West Virginia. The update announced Friday expands the scope of the largest U.S. outbreak of cyclospora on record.