A stomach parasite is spreading across several US states, leading to thousands of infections in recent weeks. Health officials are monitoring the situation as case numbers continue to rise.
The illness, called cyclosporiasis, is caused by a tiny parasite known as Cyclospora. It affects the intestines and usually causes severe watery diarrhea. Many people describe the illness as causing sudden and frequent bowel movements.
Cases Continue to Increase
The outbreak has been reported in at least 17 states. Michigan has seen the biggest rise, with almost 1,000 infections recorded within two weeks.
Illinois has also reported more than 140 cases, while Ohio has confirmed over 170 infections. According to the US Centers for Disease Control and Prevention (CDC), there have been at least 145 recorded cases. The US Centers for Disease Control and Prevention (CDC) officially recorded at least 145 cases between early May and mid-June. Between early May and mid-June, the US Centers for Disease Control and Prevention (CDC) officially documented at least 145 instances of the illness. However, health experts believe the real number is much higher because many people recover without getting tested.
So far, around 20 patients have needed hospital treatment. No deaths linked to the outbreak have been reported.
How People Become Infected
People get infected after eating food or drinking water contaminated with the parasite. Unlike some illnesses, cyclospora does not spread directly from one person to another.
Doctors say symptoms usually appear about one week after infection. Some people have no symptoms at all, while others develop ongoing diarrhea, stomach cramps, nausea, tiredness, and loss of appetite.
Without treatment, the illness can last several weeks or even longer. Symptoms may vanish and then reappear in some instances.
Where Is the Parasite Coming From?
Health officials have not yet located the exact source of the outbreak. Investigators are still trying to identify the contaminated food.
In previous outbreaks, the parasite has been linked to fresh produce such as salad mixes, basil, cilantro, raspberries, snow peas, and green onions. Experts believe contamination often happens on farms or through irrigation water before the food reaches stores.
Tips to Reduce Your Risk
Health authorities recommend washing fresh fruits and vegetables before eating them, even though washing may not remove all of the parasites. Removing the outer leaves of lettuce and green onions may also help reduce risk.
Restaurants and food businesses are also being advised to handle fresh produce carefully and cook foods when possible.
Anyone with severe or ongoing diarrhea should contact a healthcare provider, especially if symptoms continue for several days. Early diagnosis and treatment can help reduce the length of the illness and prevent complications.
