RALEIGH, North Carolina — North Carolina health officials are reporting a growing number of cases of cyclosporiasis, a parasitic intestinal illness that can cause severe, prolonged diarrhea, as authorities urge residents to take precautions while investigations into the source of infections continue.
The North Carolina Department of Health and Human Services (NCDHHS) said the state has recorded at least 110 confirmed cases since early May, with infections reported across multiple counties. Public health officials said the illness is caused by the microscopic parasite Cyclospora cayetanensis, which is typically transmitted through food or water contaminated with human feces and has frequently been linked to fresh produce.
Health officials said common symptoms include watery or severe diarrhea, abdominal cramping, nausea, fatigue, bloating and loss of appetite. Without treatment, symptoms can persist for several weeks and may recur. The illness is treatable with prescription antibiotics, and residents experiencing prolonged gastrointestinal symptoms are advised to seek medical care.
The NCDHHS said the increase in cases reflects seasonal patterns typically seen during warmer months but urged the public to reduce exposure by thoroughly washing fresh fruits and vegetables, practicing good hand hygiene and avoiding swallowing untreated recreational water. Officials also advised consumers to remain alert for public health updates as investigations continue.
The outbreak in North Carolina comes as the U.S. Centers for Disease Control and Prevention is investigating a broader rise in cyclosporiasis cases in several states. Federal and state investigators have not identified a single confirmed source for the current illnesses, although previous outbreaks have been associated with imported fresh produce, including leafy greens and herbs.
According to the CDC, people become infected after consuming food or water contaminated with the parasite. Unlike many foodborne bacteria, Cyclospora does not spread directly from one person to another because the parasite requires time in the environment before becoming infectious.
Health authorities said older adults, young children and people with weakened immune systems may face a greater risk of severe illness or complications from prolonged dehydration caused by persistent diarrhea. Officials encouraged anyone with symptoms lasting more than a few days, particularly after eating fresh produce, to contact a healthcare provider for evaluation and testing.
State and federal health officials said investigations remain ongoing to determine whether the North Carolina cases are linked to a common food source or to the wider multistate increase in cyclosporiasis reported this summer.
