Michigan alone has reported more than 700 cases of the seasonal food poisoning parasite often linked to fresh produce. Why haven't we found the cause?

Mystery foodborne parasite drives severe diarrhoea outbreak across 17 US states

Some states report higher numbers of cases than usual for this time of year

The source of the illnesses is still unknown, but fresh produce is suspected.

Cases of cyclosporiasis, which causes explosive diarrhea and other food poisoning symptoms, have topped 1,000. See which states have the most.

Cases have risen quickly as officials are working to identify a common source.

There are now more than 700 cases in Michigan, up from just 572 over the weekend, as other states also see increase

What to know about the current situation

An unprecedented 700-plus cases have been reported in Michigan alone

Michigan is experiencing its largest outbreak of a parasitic infection that causes severe diarrhea. Nearly 1,000 people have been diagnosed with cyclospora as of Wednesday, though…

Cases of cyclosporiasis, an infection that causes "explosive" diarrhea, are on the rise throughout the United States, health officials said Wednesday.

Michigan has logged 1,251 cases of the illness in less than three weeks, immensely more than the average of about 50 infections recorded there annually.

Cyclosporiasis is passed through contaminated food and water

It’s not clear what’s causing rising cases of cyclosporiasis, but cooking fruits and veggies and washing produce can help reduce your risk.

Hundreds of cyclosporiasis cases have been reported across the US. Here's where they're occurring and tips to help reduce your risk of infection.

Health officials are reporting record numbers of the unpleasant gastrointestinal infection in southeastern Michigan.

A "large and growing outbreak"

Michigan alone has reported more than 700 cases of the seasonal food poisoning parasite often linked to fresh produce. Why haven't we found the cause?

Michigan — the state with the highest infection count — recorded 1,251 total cases of Cyclosporiasis on Thursday, a 26% jump from the previous day.

A cyclosporiasis outbreak has affected multiple US states, causing thousands of cases of explosive diarrhoea linked to contaminated food or water.

The source of the current outbreak is unknown, but certain types of fresh produce have historically been the culprit.