# Legionella unknown;Legionella pneumophila outbreak — Colorado, 2016-09
> **Water** · Confirmed;Confirmed · 2 ill / 2 hosp / 0 deaths
## Outbreak
- **NORS ID:** NORS-1044f26624ed
- **Date:** 2016-09
- **State:** Colorado
- **Primary mode:** Water
- **Etiology:** Legionella unknown;Legionella pneumophila (serogroup 1)
- **Etiology status:** Confirmed;Confirmed
- **Setting:** Assisted Living/Rehab
## Impact
- **Illnesses:** 2
- **Hospitalizations:** 2
- **Deaths:** 0
## Water exposure

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

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