
Hamilton County health officials are sounding the alarm after doctors flagged a cluster of cyclosporiasis cases this week. The microscopic parasite behind the illness, Cyclospora, can trigger days of watery, sometimes “explosive” diarrhea, abdominal cramps and draining fatigue that may seem to clear up only to flare again. Investigators have not yet found the source, and county leaders say more infections are likely as interviews and lab testing continue.
Local alert and immediate steps
The county has confirmed at least 10 cases so far. Medical director Dr. Stephen Feagins did not sugarcoat how it spreads, warning that “Cyclospora is a parasite that you get from poop,” and urging anyone with persistent stomach troubles to call a health care provider and stay out of public pools. Health officials are also telling residents to wash produce thoroughly, wash hands before and after handling groceries, and stay home if they are sick to help curb spread, according to FOX19.
Where this fits into the regional picture
Nationwide, the Centers for Disease Control and Prevention has logged 145 domestically acquired cyclosporiasis cases through June 16, and notes that reporting delays likely mean the real number is higher, according to the CDC. Some states are seeing sharper spikes. Michigan officials reported that cases had surged into the hundreds by late June and early July, per the Michigan Department of Health and Human Services, and Ohio authorities confirmed 177 cases statewide as of July 2 in statements reported by Good Morning America.
How Cyclospora spreads and what to do at home
Cyclospora infection happens when people eat or drink something contaminated with feces, and outbreaks in the United States have frequently been traced to fresh produce. Clinical guidance recommends rinsing fruits and vegetables well under running water, scrubbing firm produce, trimming away bruised spots, refrigerating pre-cut items, and washing hands regularly. When infection is confirmed, doctors typically prescribe a course of trimethoprim-sulfamethoxazole (TMP-SMX) for treatment. These prevention and treatment steps are outlined in clinical resources from the Cleveland Clinic and other health-system advisories.
Why official counts may understate how many people are ill
Public health experts caution that official case numbers are almost certainly an undercount. Cyclospora requires specific lab testing, and standard stool cultures often do not pick it up. “Testing is so hard,” Dr. Feagins told local reporters, adding that local, state and federal teams are working to track down any contaminated food or water source while expecting more cases to surface until that source is nailed down, according to FOX19.
If you have symptoms
Anyone dealing with persistent watery diarrhea, stomach cramps or nausea is being urged to call their primary care provider and specifically ask about testing for Cyclospora. Clinicians commonly treat confirmed infections with a 10-day course of trimethoprim-sulfamethoxazole, according to the Cleveland Clinic. Local officials also urge sick residents to stay home and avoid public pools so they do not contaminate recreational water while investigators work to track the source, as reported by Good Morning America.









