# Allergic and irritant dermatitis  acute at Yale University
> OSHA SIR `2025032928` · 3/28/2025 · NEW HAVEN, CONNECTICUT
## Severity
- **1 hospitalization**
- **Body part:** BODY SYSTEMS
- **Nature of injury:** Allergic and irritant dermatitis  acute
## Cause
- **Event:** Non-venomous animal bites  except "bugs"
- **Source:** Rodents
- **Secondary source:** Secondary source not applicable
## Employer
- **Name:** Yale University
- **Location:** 34 Park Street, NEW HAVEN, CONNECTICUT, 06519
- **NAICS:** 611310
- **Jurisdiction:** 1
## Narrative

An employee was conducting an experiment with a rat. The rat bit a finger (first digit) on the employee's left hand that resulted in swelling and pain due to an infection. The employee was hospitalized for treatment.

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*Source: [OSHA Severe Injury Reports](https://www.osha.gov/severe-injury-reports) · MORVS · CC0 1.0*