Cyclosporiasis Outbreak Spreads Across Michigan, Over 225 Cases Identified

A growing outbreak of cyclosporiasis, a parasitic gastrointestinal infection, has spread across Michigan with more than 225 cases identified in at least 21 counties and the city of Detroit since June 22. The Michigan Department of Health and Human Services is working with the CDC and state agriculture officials to identify the source.

Outbreak Overview:

• 225+ cases identified as of July 1
• Affecting 21 Michigan counties plus Detroit
• Patients range in age from 8 to 84 years old
• First case reported June 22

"Outbreaks of cyclosporiasis have been occurring across the United States and now here in Michigan," said Dr. Natasha Bagdasarian, chief medical executive, in a statement. "Based on the unusual number of cases we have identified in a little over a week, we anticipate additional cases of illness being reported."

What is Cyclosporiasis?

Cyclosporiasis is caused by a microscopic parasite called Cyclospora cayetanensis, which is common in tropical and subtropical regions. People typically become infected by consuming contaminated fresh produce imported from these areas. The illness does not spread from person to person.

Symptoms to Watch For:

• Watery diarrhea (can be explosive)
• Abdominal cramps and bloating
• Loss of appetite and weight loss
• Nausea and low-grade fever
• Vomiting (less common)

Symptoms typically begin 2 to 14 days after exposure. The infection can be treated with antibiotics, but if left untreated, illness may last from days to a month or longer.

County Case Counts (as of July 1):

• Monroe: 92 cases
• Lenawee: 36 cases
• Washtenaw: 28 cases
• Wayne County: 17 cases
• Jackson: 11 cases
• Shiawassee: 9 cases
• Other counties: 32 cases combined

Health officials are interviewing infected individuals to identify common exposure sources. Anyone recently diagnosed with cyclosporiasis is encouraged to report it by calling their local health department.

How to Protect Yourself:

• Wash hands with soap and water before and after handling raw produce
• Wash all fruits and vegetables thoroughly under running water
• Scrub firm produce like melons and cucumbers with a clean brush
• Cut away damaged or bruised areas before eating
• Refrigerate cut, peeled or cooked produce within two hours

"Individuals concerned about sudden gastrointestinal illness should contact a health care provider," said spokesperson Lynn Sutfin. "Individuals experiencing diarrheal illness are encouraged to hydrate, particularly during high temperatures."

Frequently Asked Questions

Q: What is cyclosporiasis and how is it spread?
A: Cyclosporiasis is a parasitic infection caused by Cyclospora cayetanensis. It spreads through contaminated food or water, typically fresh produce imported from tropical regions. It does not spread person-to-person.

Q: What are the symptoms of cyclosporiasis?
A: Symptoms include watery diarrhea, abdominal cramps, bloating, loss of appetite, weight loss, nausea, and low-grade fever. Symptoms typically appear 2-14 days after exposure.

Q: How can I protect myself from cyclosporiasis?
A: Wash hands before and after handling produce, thoroughly wash all fruits and vegetables, scrub firm produce, cut away damaged areas, and refrigerate cut produce within two hours.