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Michigan’s cyclosporiasis outbreak grows to more than 1,500 cases

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Michigan health officials say the state’s cyclosporiasis outbreak has grown to more than 1,500 cases. 

As of July 10, the Michigan Department of Health and Human Services has received 1,562 reports since June 22. Health officials say 44 people have been hospitalized. 

Cyclospora cayetanensis is a parasite that causes the diarrheal illness cyclosporiasis. The Centers for Disease Control and Prevention says the most common symptoms associated with the illness are frequent watery diarrhea, loss of appetite, bloating, nausea and fatigue. Some people may also experience body aches, headache or vomiting.  

The outbreak of the gastrointestinal illness was first reported in late June, after the Monroe County Health Department said it was investigating a cluster of cases. 

Most of the cases have been in Southeast Michigan, with multiple cases reported in Jackson, Lenawee, Livingston, Oakland, Shiawassee, Washtenaw and Wayne counties. As of July 9, cases have been confirmed in 40 counties, with Monroe County reporting the most, at 215. 

Michigan averages about 50 cases per year, according to MDHHS.    

According to the CDC, at least 31 states have reported cases since early May, including IllinoisNew York, and Texas.

MDHHS recently launched a cyclosporiasis outbreak webpage, where case counts are updated daily by 11 a.m. ET. The state will provide an update on hospitalization status and detailed outbreak data on Thursdays. 

What’s causing the outbreak?

Health officials are still working to determine the cause or causes of the recent burst in cases, whether that be a supplier, grower or type of produce.

According to MDHHS, previous outbreaks in the U.S. and Canada were linked to bagged salad mixes, fresh cilantro, fresh basil, raspberries, snow peas and scallions.

Considering the trends, state health officials recommend that restaurants and commercial kitchens in Southeast Michigan take additional precautions with fresh produce, including washing it under clean running water and cooking it when possible.

Tips to prevent cyclosporiasis

Health officials shared the following tips for avoiding the illness:

  • Wash all fruits and vegetables thoroughly, under running water, before cutting, cooking or eating.
  • Scrub firm fruits and vegetables, such as melons and cucumbers, with a produce brush when cleaning.
  • Cut away any damaged or bruised areas of produce before preparing and eating.
  • Refrigerate any cut, peeled or cooked produce within two hours of preparing it.

Trump administration’s antisemitism lawsuit against Harvard dismissed

A federal judge in Massachusetts on Thursday dismissed a Trump administration lawsuit against Harvard University that accused the school of failing to protect Jewish and Israeli students, finding the instances of alleged discrimination cited by the government were "too isolated and episodic" to support federal civil rights violations. U.S. District Judge Richard Stearns in Massachusetts issued a four-page order granting Harvard's motion to dismiss the suit."Without diminishing any concern arising from these occurrences, the court finds them, singly and collectively, to be too isolated and episodic to support a plausible inference that any institutionalized noncompliance with Title VI persists at Harvard to this day," Stearns wrote. Stearns wrote that the government's complaint was "devoid of any factual allegations" that occurred after the Trump administration notified Harvard that it believed it had failed to comply with federal civil rights law, as is required before any legal action can be taken, and the other three instances in the complaint occurred between 2023 and 2024. In March, the Justice Department filed a federal civil rights lawsuit against the university, alleging that it violated the law by failing to protect the students after the Oct. 7, 2023, terror attack by Hamas, claiming Harvard's "intentional conduct and its deliberate indifference to discriminatory harassment of Jewish and Israeli students and creation of a hostile educational environment." The administration sought to recover billions of dollars in taxpayer money that Harvard has received from federal agencies. In its lawsuit, the Justice Department alleged that Harvard defied federal law by discriminating against the students "without remorse" and the students were subjected to "severe, pervasive and objectively offensive harassment" on campus, including during protests against Israel, because of their race or national origin. The government alleged that Harvard knew about the harassment against the Jewish and Israeli students but did not stop it.The lawsuit was one of many steps against the university that the Trump administration has taken since President Trump's return to office, in addition to attempting to cancel billions of dollars in federal funding. Harvard, the White House and the Justice Department did not immediately respond to requests for comment. Melissa Quinn contributed reporting.
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