Ninety-seven people have reported cases of cryptosporidiosis since last month’s outbreak at Edgewater Resort and Water Park in Duluth, according to the Minnesota Department of Health. Twenty-two of those cases have been confirmed in laboratories.

Minnesota Department of Health (MDH) epidemiologist Trisha Robinson said the confirmed cases probably only represent a fraction of people who were actually sickened by the parasite. The investigation of the outbreak is still in progress.

"One different thing with cryptosporidiosis is the time from when a person is exposed to the time when they become sick can be as long as two weeks," Robinsons said. "Pools were closed on March 26, so we could still have

Another unrelated cryptosporidiosis outbreak in Brainerd last month resulted in 36 reported cases, with one case being confirmed in a laboratory.

Robinson said that people who have been sick with diarrhea in the previous two weeks should avoid swimming in recreational waters.