# Legionella pneumophila outbreak — Colorado, 2017-01
> **Water** · Confirmed · 2 ill / 2 hosp / 0 deaths
## Outbreak
- **NORS ID:** NORS-400a1ebc7cf6
- **Date:** 2017-01
- **State:** Colorado
- **Primary mode:** Water
- **Etiology:** Legionella pneumophila (serogroup 1)
- **Etiology status:** Confirmed
- **Setting:** Assisted Living/Rehab
## Impact
- **Illnesses:** 2
- **Hospitalizations:** 2
- **Deaths:** 0
## Water exposure

- **Exposure:** Recreational water -- treated
- **Water type:** Pool - Other Swimming Pool

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