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Michigan's cyclosporiasis outbreak is growing. Here's everything you need to know.

A widespread cyclosporiasis outbreak is affecting 31 U.S. states, with cases in Michigan surpassing 1,500.

By · Published July 13, 2026  09:46 UTC · Updated July 13, 2026  11:39 UTC

5sources
5articles
3velocity
+0%since first seen
90d agofirst detected
Text:
🤖 AI Dossier

Evidence dossier

Intelligence passport

57/100 Publishable
5distinct sources shown
40velocity measurements
1language editions checked
All brief claims passed the second-source checkbrief evidence status

Measured timeline

📍 The outcome

Cyclosporiasis cases in Michigan exceeded 1,500 as the parasite sickened people across 31 states. The cause of the explosive stomach bug outbreak remained a mystery.

Epilogue added 88d ago, after coverage quieted.

The obvious questions

How many states are affected by the outbreak?

According to People.com, 31 states have reported cases.

How many cases have been reported in Michigan?

Cases in Michigan have exceeded 1,500, as reported by WDIV Local 4.

Has the cause of the outbreak been identified?

Axios reports that the outbreak remains a mystery.

The story so far

⚡ Executive Intelligence Takeaways Corroborated across 5 independent newsrooms
  • Velocity & Diffusion: Coverage exploded across 5 distinct news outlets with 5 published articles, achieving a live velocity of 3.
  • Primary Driver: A widespread cyclosporiasis outbreak is affecting 31 U.S. states, with cases in Michigan surpassing 1,500.
  • Predictive Outlook: Archynetys algorithmic models forecast this story will fade from trending status over the next 24 hours.
  • Source Integrity: Verified strictly against primary headline reporting under zero-hallucination protocols.

A parasite causing "explosive" diarrhea, identified as cyclosporiasis, is sickening people across the United States. The outbreak has reached 31 states, including California and Michigan, where the number of cases has exceeded 1,500.

Coverage from Axios and Bloomberg emphasizes that the source of the outbreak remains a mystery. Reports from People.com and the San Francisco Chronicle highlight the scale of the spread and the nature of the parasite's symptoms.

Further reporting focuses on precautions individuals should take as cases continue to rise across the country.

Synthesized by Archynetys from the headlines below under a strict no-invention contract. ✓ fact-checked: all claims supported by sources Updated 88d ago.

Who reported it (5)

Momentum

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Topics

Cyclosporiasis Michigan California Public Health

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