Health Officials Investigate "Large and Growing" Michigan Parasite Outbreak
Who wants to see headlines about parasites? Probably nobody.
Yet, that's exactly what's happening in the United States, where health officials are investigating a growing Michigan cyclosporiasis outbreak that's already sickened more than 300 people.
For comparison, the state usually sees only about 50 cases in an entire year. Investigators are still working to identify the source, but the unusually large number of illnesses has drawn national attention.
What Is Cyclosporiasis?
Cyclosporiasis is an intestinal illness caused by a microscopic parasite called Cyclospora cayetanensis.
People usually become infected after consuming food or water contaminated with the parasite. In the United States, previous outbreaks have often been linked to fresh produce.
Unlike many common stomach bugs, this illness can linger for weeks if left untreated. That's one reason health officials are paying close attention to the current outbreak.
The Numbers Have Risen Quickly
On July 1st, health officials reported more than 170 cases. Within days, that number had climbed past 300.
Health officials have described it as a "large and growing" outbreak while they continue to search for a common source of exposure.
The outbreak has drawn national attention because of how quickly the case count has increased. At the moment, investigators haven’t publicly identified a specific food item or source responsible for the illnesses.
Cyclospora Symptoms Can Feel Like Food Poisoning
Cyclospora symptoms look a lot like other gastrointestinal illnesses. The most common symptom is watery diarrhea.
Other symptoms may include:
Stomach cramps
Bloating
Nausea
Loss of appetite
Fatigue
Vomiting
Low-grade fever
Symptoms can appear anywhere from a few days to two weeks after exposure, which makes it difficult for investigators to determine exactly where someone became infected.
How Can You Reduce Your Risk?
Because this is considered a foodborne parasite outbreak, health officials recommend taking some familiar food-safety precautions.
That includes:
Washing fruits and vegetables thoroughly
Refrigerating produce promptly
Using clean water for washing food
Practicing good hand hygiene
While these steps can't eliminate every risk, they can help reduce the chances of exposure.
A Reminder That Investigations Take Time
One of the most frustrating things about outbreak investigations is that answers don't always arrive right away. Health officials know people are getting sick. They know the illnesses appear to be connected. What they don't know yet is what linked them all together.
For now, the Michigan health warning remains in place while state and federal investigators continue searching for the source. In the meantime, if you develop persistent diarrhea or other symptoms that don't seem to improve, contact your doctor.
Sometimes, the most important clue in an outbreak starts with a single patient asking a simple question: "Why am I still sick?"
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