Surge in Cyclosporiasis Cases Across Multiple States

Health officials are investigating a significant increase in infections caused by Cyclospora cayetanensis, a parasite responsible for severe diarrhea and vomiting. From May 1 to June 16, the Centers for Disease Control and Prevention (CDC) confirmed 145 cases nationwide, with 20 hospitalizations. However, data suggest the true number might be higher, affecting at least 18 states.

Michigan’s Outbreak

Michigan has become a major hotspot, with the Michigan Department of Health and Human Services (MDHHS) reporting over 300 cases. Typically, Michigan records about 50 cases annually. Southeastern and Southern Michigan are hardest hit, with Monroe County recording the highest infections. Other affected areas include Lenawee, Washtenaw, Wayne, Livingston, Shiawassee, and Jackson counties, as well as Detroit. Dr. Natasha Bagdasarian, Michigan’s chief medical executive, stated their anticipation of more cases emerging.

Additional States Hit

In New York, health officials reported 107 cases since May. Other states like Illinois and Texas are also seeing high concentrations, alongside cases identified in Alaska, Colorado, Connecticut, Florida, Georgia, Louisiana, Massachusetts, New Jersey, North Carolina, Ohio, Pennsylvania, Tennessee, Virginia, and Wisconsin. No travel links were found for cases prior to June 16.

“Outbreaks are happening across the U.S., including Michigan,” says MDHHS

Understanding Cyclosporiasis

Cyclosporiasis results from ingesting food or water contaminated with infected feces. Signs can appear within two weeks, resembling flu symptoms like nausea and fatigue, and often involve watery diarrhea. While most individuals recover without medical help, older adults are more susceptible to prolonged sickness. The illness doesn’t spread directly between people.

Treatment involves a regimen of antibiotics, specifically trimethoprim-sulfamethoxazole, known by brands like Bactrim. Public health authorities stress hydration through rest and fluid intake to combat dehydration risks from diarrhea.

Investigating Sources

No single source for these cases has been identified; various regional clusters seem possible. Past outbreaks linked to imported produce, including raspberries and cilantro, suggest a more complex origin. Collaborations include the U.S. Food and Drug Administration (FDA) and local health agencies such as the Michigan Department of Agriculture and Rural Development (MDARD) to identify the source.

Jennifer Bonsky of MDARD emphasizes food safety practices, urging vigilance in handwashing before and after food preparation, and ensuring produce is thoroughly rinsed before consumption.