# Norovirus unknown outbreak — Colorado, 2023-03
> **Person-to-person** · Confirmed · 49 ill / 0 hosp / 0 deaths
## Outbreak
- **NORS ID:** NORS-e364da55ee8a
- **Date:** 2023-03
- **State:** Colorado
- **Primary mode:** Person-to-person
- **Etiology:** Norovirus unknown
- **Etiology status:** Confirmed
- **Setting:** Long-term care/nursing home/assisted living facility
## Impact
- **Illnesses:** 49
- **Hospitalizations:** 0
- **Deaths:** 0
## Source
- [NORS Dashboard](https://wwwn.cdc.gov/norsdashboard/)
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