# Unknown outbreak — Massachusetts, 2011-04
> **Person-to-person** · — · 156 ill / 1 hosp / 0 deaths
## Outbreak
- **NORS ID:** NORS-8ac69c75a636
- **Date:** 2011-04
- **State:** Massachusetts
- **Primary mode:** Person-to-person
- **Etiology:** —
- **Etiology status:** —
- **Setting:** School/college/university
## Impact
- **Illnesses:** 156
- **Hospitalizations:** 1
- **Deaths:** 0
## Source
- [NORS Dashboard](https://wwwn.cdc.gov/norsdashboard/)
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