The number of cryptosporidium cases in Iowa continues to rise, with the latest numbers showing a jump of more than 100 cases over the last week.
The Iowa Department of Public Health says as of Wednesday there are 538 cases. That’s an increase of 173 cases from last week.
Polk County has the highest number of cases at 216 but there are cases in 59 counties.
Cryptosporidium is a parasite that can be found in soil, food, water or surfaces that have been contaminated with feces from an infected animal or human. It causes severe diarrhea for up to 30-days.
If you have symptoms of the illness, health authorities urge you to stay home to prevent the spread.