Michigan health officials are investigating a major cyclosporiasis outbreak that has sickened more than 700 people and hospitalized 36 others since June 22.
The Michigan Department of Health and Human Services (MDHHS) confirmed Monday that no specific fruit, vegetable, grower, or supplier has been pinpointed yet, though contaminated produce is highly suspected.
Case counts are changing constantly, with data last updated at 4:30 p. m.
on July 6 showing infections across at least 35 counties.
Heavy concentrations include Monroe County with 173 cases, Washtenaw County with 95 cases, and Lenawee County with 86 cases.
Wayne County reported 58 cases, including six within Detroit city limits.
Unprecedented Scale of Outbreak
Dr. Matthew Sims, director of Infectious Diseases Research at Corewell Health, stated that the scale of the current outbreak is unprecedented for the region.
"This is one of the largest we've ever had in Michigan," said Sims.
The tracking data indicates a massive spike compared to previous years, according to Sims.
"In the previous year, we sent a total of 36 tests for Cyclospora; none of them were positive," he said.
"So far this year, as of yesterday, there were 26, and 15 were positive, so it's a lot more testing and a lot more positives."
Historical data from past outbreaks suggests that certain uncooked food items are typically responsible for spreading the parasite.
"Bagged lettuce, basil, raspberries — bagged lettuce is a big one because you don't cook it; it already comes washed," said Sims.
Medical professionals advise individuals to monitor their health closely and watch for severe symptoms that require immediate clinical attention.
"If you have diarrhea that lasts for more than a day or so, or you're getting dehydrated and can't keep up with food, that's the time to see a doctor," said Sims.
Dr. Claudia Richardson, medical director for Detroit's Health Department, urged the public to implement strict safety measures when preparing food items.
"I would rinse it thoroughly, immerse in water, vinegar," said Richardson.
The infection does not spread directly between individuals, which provides some reassurance to the public amid the rising numbers.
"It's not something that's passed from person to person," said Richardson.
Consumers are advised to maintain rigorous cleaning habits for all fresh food items during the ongoing health crisis.
"With produce, pay extra attention at this time with this outbreak going on — we want them to thoroughly wash your produce," said Richardson.
Antibiotics remain available to treat the illness, and MDHHS recommends anyone experiencing sudden or ongoing diarrhea to contact their healthcare provider and local health department, alongside practicing frequent handwashing.
