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Parasite-induced ‘explosive’ diarrhea cases rise in Tennessee. Here’s what to know
By Li Cohen at WSMV 4 News (NBC affiliate)
· July 1, 2026
· 3 min read
NASHVILLE, Tenn. (WSMV) - The U.S. is seeing an increase in cases of a parasite that can cause “explosive bowel movements” — and Tennessee is among the areas being impacted. The Centers for Disease Control and Prevention (CDC) issued a notice on Wednesday that the parasite-induced illness, known ...
Key takeaway “These people became sick after eating food in the United States and did not report any travel during the 14 days before they got sick,” the CDC said.
Why this matters in The Nashville
The rise of Cyclosporiasis cases in Tennessee, particularly during the spring and summer months, raises concerns about the state's food and water safety. As the parasite is typically acquired through contaminated food or water, it is crucial for local health officials to investigate potential sources of contamination within the state. Tennessee's cases are part of a larger national outbreak, with 17 states reporting cases, but the fact that people became sick after eating food in the United States, without any travel history, suggests that the contamination may be linked to domestic food production or handling. The impact on vulnerable populations, such as the immunocompromised and those in poor health, is also a concern, as they may be at a higher risk of severe illness. Local residents should be aware of the symptoms and take precautions to prevent the spread of the illness, while health officials work to identify and address the root cause of the outbreak.
About this story
Original reporting by WSMV 4 News (NBC affiliate) . The Nashville surfaces reporting from trusted publishers and adds local editorial context so readers can quickly understand what a story means for their community. We attribute every source, link to the original report, and follow a documented editorial standards policy. To understand how stories are selected and reviewed, read our about page .
For the complete original report, visit WSMV 4 News (NBC affiliate) . Have a tip or correction? Contact our newsroom .
Category: local ·
Published: July 1, 2026 ·
Source: WSMV 4 News (NBC affiliate) ·
Reading time: 3 min
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Frequently asked about this story
What is this story about? NASHVILLE, Tenn. (WSMV) - The U.S. is seeing an increase in cases of a parasite that can cause “explosive bowel movements” — and Tennessee is among the areas being impacted. The Centers for Disease Control and Prevention (CDC) issued a notice on Wednesday that the parasite-induced illness, known ...
When was this published? This article was first published on July 1, 2026 by WSMV 4 News (NBC affiliate) and curated for The Nashville readers.
Who reported this story? This story was reported by Li Cohen at WSMV 4 News (NBC affiliate). To learn more about how The Nashville selects and reviews stories, see our editorial standards .
Where can I find related coverage? See more local coverage from The Nashville, or browse our daily briefing and topic hubs .
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