II. Background: Two epidemics of unexplained Pulmonary Hemorrhage
- Chicago (April 1992 - Nov 1994)
- Seven Infants ages 3 weeks to 7 months
- Predominately black
- No underlying disease
- Presenting
- ARDS
- Hemoptysis
- Epistaxis
- Afebrile
- Survival: 100% (one died 3 weeks post discharge)
- Cleveland (January 1993 to November 1994)
- Eight infants affected