# CDC investigates parasite that’s caused cases of ‘explosive’ diarrhea in 18 US states

> **Newsylist Open Intelligence Dossier** · First detected: 2026-07-03 20:44 UTC · Category: Health · Sources: 6 · Current Velocity: 3.67

## Executive Summary
The CDC is investigating a growing parasitic infection causing severe diarrhea across 17 to 18 US states.

## Intelligence Brief
The Centers for Disease Control and Prevention (CDC) is tracking an outbreak of cyclosporiasis. The parasitic infection has been reported in multiple states, including Florida, New York, Ohio, Pennsylvania, and New Jersey.


Coverage from CBS News, 6abc Philadelphia, WPEC, and The Columbus Dispatch emphasizes the scale of the outbreak, describing the infection as "large and growing." Reports specifically highlight dozens of cases in New York and an "exploding" number of cases in Ohio.


Future developments depend on the CDC's ongoing investigation into the spread of the parasite across the affected states.

## Verified Facts & Key Claims
### What is the name of the parasite causing the outbreak?
According to CBS News, the parasite is cyclosporiasis.

### Which states have been specifically mentioned in the reports?
Coverage mentions Florida, New York, Ohio, Pennsylvania, and New Jersey.

### How many states are affected?
Reports vary slightly, with 6abc Philadelphia noting 17 states while other coverage indicates 18.

## Key People, Organizations & Locations
New York, Florida, CDC, Dozens, Large, Number, Pa and NJ

## Multi-Source Evidence Table
| Source Outlet | Headline | Published (UTC) | Verification URL |
|---|---|---|---|
| ClickOnDetroit | WDIV Local 4 | What to know about cyclosporiasis as Michigan health officials investigate 300+ cases in outbreak | 2026-07-03 21:15 | [Source Link](https://news.google.com/rss/articles/CBMi5AFBVV95cUxOXzBlTjhpT0Ntdi1KOENlRVZQOThhOFo0N3FqdWdNcGhxWFNwNlJQR0xINklPSTVvT19vWDdMVms3RWpIa3BwajkxN1RnNHRJalczQV9XbTVnWVBJTklMd3ZyaTRRajlEeksxTjlzN0VvRTVqUzN1b2lobEJlLUdTUGpHR2Y4aGhKaVNHN3dNdmdVZTh4SGh0V0hYRnFrWEFRcVUtdzJjRHVPekVOanpSd3hOeDMwUkduRDlFdFpFNk9vdFQ3LTRpUkpkY3VCampKWHN4NnlUMkJidW9kUE4zUFBwVko?oc=5) |
| WKYC | Northeast Ohio sees multiple cases of ‘explosive diarrhea parasite': What you need to know | 2026-07-03 21:15 | [Source Link](https://news.google.com/rss/articles/CBMihAJBVV95cUxQODJXMHplYThxVVJuYm04QzdBbGd0Z1F6NWhaaFVLUjVHLUJIZWxlQU9rOHAwU1k2b2dObkR5Wjl0VTM4U0pDekpzX2xGNVMyaTh6amVEd1IwTUI5YllLNElGZTlKYzZlSkhRbnZTUjlWS2Z1emwxUFJHenp4bjNmdl9zVXFTc0hYTUZKSHZBUFJhVmwydGhmclA4eEY4WHdCTVRIZE9PUy1JbklLd1pab0FOcV9vaF93TnhMY0lJWlNQdVptV0F2T050VEVNS0UySmVWMEZEak5ScGRHMG95VGtDS1lzNWMwYXBBdVpFVEdmdzNKUE9qVVFqMXV1bkczRWNkTQ?oc=5) |
| WPEC | CDC reports parasite that causes severe diarrhea in Florida | 2026-07-03 21:15 | [Source Link](https://news.google.com/rss/articles/CBMi4wFBVV95cUxQMkRUT3JSRUpOUXFBVDh4eW5fd1lZWk40R1lwT0RjQjNabDVHNHpONzRXbGtTdE9WUkJuT0NKU1U3LWtBb2hzbXBRbVpnZGE5NDVES3ZycVpTOTduejJtNFhiblhCSV9JOUczRUpkSXZBTmdwRHo4T3FUcUJSSl9ucjdsN05RZEk0VUVWRjVlS0FvbHFjVWZnZlI2bkVsR1hJR0d2VldGbTE0MFBSYzBCbTdzOTZqcmJSX1JOOHFSZklWaS1TaE4xMDNrWGJMY0MxdklUTGVTTFZDeURBNU5nT0NJbw?oc=5) |
| CBS News | Dozens of cyclosporiasis cases reported across New York state, CDC reports | 2026-07-03 21:15 | [Source Link](https://news.google.com/rss/articles/CBMibkFVX3lxTE5MWE1GVHpDZGJYb1FUNGRGMVc3MmZMWENLZnljbVNSVnZxQThZcFlpbk90TmloQ0UtNmpTOE1RcWFseUJadlZJckcwbTVXdDRsUWVFeTBkOFZ4bVpScy1OQ0dsczRvNV9lelRfeXl3?oc=5) |
| The Columbus Dispatch | Number of cases of parasite infection causing diarrhea explode in Ohio | 2026-07-03 21:15 | [Source Link](https://news.google.com/rss/articles/CBMixgFBVV95cUxNMkxOX2JDb1JQOHVJdlZrajRtLUtFSkdfaTNEdnpjN0VIcFhWSGFpNzBsbm9uZVNrQTBmdGV4RnAxeWI0N1kwLXlYaTF5SU41VVJUUU51YnJXNEZ4WS1xTTlpQ2V1eGJqY0FMVTlZNFV3VEVBU1RzX1RTd1NxeW4yLWVzcm5uQzBGV1FjNWFfT0FKU3lRU3JRdGRlTDA4Y3VWUzJuRmZ1V1Q0V0FfLWlGUDZrMlQzWEJDLW4xc3hNSERvTl9ySVE?oc=5) |
| 6abc Philadelphia | 'Large and growing' parasitic infection reported in 17 states, including Pa. and NJ | 2026-07-03 21:15 | [Source Link](https://news.google.com/rss/articles/CBMiugFBVV95cUxPdWM1NmdicF92ZkdZa0NrUnMtT1hXUzBveEdSSFJqN1JNYkVLdlcxVjJOMnprVUkwN1hFeTRQQVp3R244Y2FMbmo1Yk1TdnJzSzVSVjRrNmFLWk53VGRNc1kwVktjR1hwTTlac25ET240Sy1veXVHRk1zSDNWLXlUcTVSNzhTQXBSNUpwaThQRXZlSUlvNWRTeWZad0ZZb3BpTkhvWFcwSTlGSndob1RWcWl1TDZzRHd4cEE?oc=5) |

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