# Unknown outbreak — Wyoming, 1977-07
> **Water** · Suspected · 402 ill / 0 hosp / 0 deaths
## Outbreak
- **NORS ID:** NORS-4ef524aa8fff
- **Date:** 1977-07
- **State:** Wyoming
- **Primary mode:** Water
- **Etiology:** Unknown
- **Etiology status:** Suspected
- **Setting:** Park - National Park
## Impact
- **Illnesses:** 402
- **Hospitalizations:** 0
- **Deaths:** 0
## Water exposure

- **Exposure:** Drinking water
- **Water type:** Community

## Source
- [NORS Dashboard](https://wwwn.cdc.gov/norsdashboard/)
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