| Outbreak: Jack In The Box Hamburgers | |
|---|---|
| Product: Hamburgers | Investigation Start Date: 01/12/1993 |
| Location: Multi-State Outbreak | Etiology: E. coli O157 |
| Earliest known case onset date: 11/18/1992 | Latest case onset date: 02/21/1993 |
| Confirmed / Presumptive Case Counts: 503 / 229 | Positive Samples (Food / Environmental / Water): 0 / 0 / 0 |
| Hospitalizations: 151 | Deaths: 3 |
OUTBREAK SUMMARY:
This was the largest outbreak of E. coli O157 infections ever documented in the United States, and it injected this pathogen—and threats to food safety in general—into popular consciousness.