# Legionella unknown outbreak — California, 1977-05
> **Water** · Confirmed · 49 ill / 0 hosp / 15 deaths
## Outbreak
- **NORS ID:** NORS-a67aefea8736
- **Date:** 1977-05
- **State:** California
- **Primary mode:** Water
- **Etiology:** Legionella unknown
- **Etiology status:** Confirmed
- **Setting:** Hospital
## Impact
- **Illnesses:** 49
- **Hospitalizations:** 0
- **Deaths:** 15
## Water exposure

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

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