# Legionella pneumophila outbreak — Pennsylvania, 2011-02
> **Water** · Confirmed · 21 ill / 21 hosp / 5 deaths
## Outbreak
- **NORS ID:** NORS-c1f045dd23c4
- **Date:** 2011-02
- **State:** Pennsylvania
- **Primary mode:** Water
- **Etiology:** Legionella pneumophila (serogroup 1)
- **Etiology status:** Confirmed
- **Setting:** Hospital
## Impact
- **Illnesses:** 21
- **Hospitalizations:** 21
- **Deaths:** 5
## Water exposure

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

## Source
- [NORS Dashboard](https://wwwn.cdc.gov/norsdashboard/)
---
*AI Analytics · CC0 1.0*