# Legionella pneumophila outbreak — Pennsylvania, 1974-09
> **Water** · Confirmed · 11 ill / 0 hosp / 0 deaths
## Outbreak
- **NORS ID:** NORS-70c913b909f4
- **Date:** 1974-09
- **State:** Pennsylvania
- **Primary mode:** Water
- **Etiology:** Legionella pneumophila (unknown)
- **Etiology status:** Confirmed
- **Setting:** Hotel/motel
## Impact
- **Illnesses:** 11
- **Hospitalizations:** 0
- **Deaths:** 0
## Water exposure

- **Exposure:** Undetermined water
- **Water type:** —

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