# ‘Explosive diarrhoea’ outbreak grips US: how researchers are hunting its source

> **Open Intelligence Dossier** · First detected: 2026-07-16 21:07 UTC · Category: Health

## Executive Summary
3 news sources are covering this Health story right now — PULSE is tracking how fast it spreads.

## Intelligence Brief
"‘Explosive diarrhoea’ outbreak grips US: how researchers are hunting its source" is generating significant coverage in the Health category, with 3 articles from 3 distinct sources tracked by PULSE so far.


Outlets currently covering the story include Block Club Chicago, WRAL and Nature. PULSE measures a story's velocity from how quickly new articles appear and how many independent newsrooms join the coverage.


This brief was generated by PULSE's extractive engine from coverage metadata only. The latest headlines from every source are listed below; the velocity chart shows how the story is developing in real time.

## Multi-Source Evidence Table
| Source Outlet | Headline | Verification URL |
|---|---|---|
| Block Club Chicago | What To Know About Cyclosporiasis, The ‘Exploding Diarrhea’ Illness | [Source Link](https://news.google.com/rss/articles/CBMiqAFBVV95cUxOZHQwWTF1dWlacm1XNFlBc3RnVHJ6N1FhNEo2RnMzZmpvbmdaWWZaNkt3UzZ4ZnVSc1RYVlNqRElyNExUVS1TRHd1T0JWRkNFc1ltenhQYTJwMVJ5T01oT3F2S056TnlRYU5nbUd0dFNrT0hXeXF6WDEwT25SWm94UDdHYUlHNzQ5ZDdfTDRYNnR0ZHRvWjZrSzk3a0JwaUxidDVmdUo1TXo?oc=5) |
| WRAL | More people are seeking Cyclospora tests. Here's what patients should know | [Source Link](https://news.google.com/rss/articles/CBMiiAFBVV95cUxON0JBY05rYm5NTFdRTFVXQWRfNFZyRldrckdka2hQZHQ2d2g1bVZkdWltT0tkYVdDQ2h3VWpoc1pfdEpDY2FKdC1zVmEwbHFFMmt6M3VpN3dyU0lZczZ3bjVfcUZHWHBoMHI5M1c4RURINC1YcG5GNnY5N2FIVUM3TENTazV3QXFw?oc=5) |
| Nature | ‘Explosive diarrhoea’ outbreak grips US: how researchers are hunting its source | [Source Link](https://news.google.com/rss/articles/CBMiX0FVX3lxTE9jaDRPV0UwV3gyQXNGQWR1aXk4dUpNbFVlekVrNXJldGQ5d0hkNFhzTEZJMjlMUUl6RmEtTU02SjB2dDJKRFJVU2xxUU0zR2VVd242QUFmbjl3aFdPTGtZ?oc=5) |

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*Canonical Source: https://pulse.byoviral.com/trend/2026-07-16/explosive-diarrhoea-outbreak-grips-us-how-researchers-are-hunting-its-source*