# Legionella pneumophila outbreak — Pennsylvania, 2023-04
> **Water** · Confirmed · 12 ill / 4 hosp / 0 deaths
## Outbreak
- **NORS ID:** NORS-0a185bfc0191
- **Date:** 2023-04
- **State:** Pennsylvania
- **Primary mode:** Water
- **Etiology:** Legionella pneumophila (serogroup 1)
- **Etiology status:** Confirmed
- **Setting:** Hotel/motel
## Impact
- **Illnesses:** 12
- **Hospitalizations:** 4
- **Deaths:** 0
## Water exposure

- **Exposure:** Recreational water -- treated
- **Water type:** Hot Tub/Spa/Whirlpool

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