2019 Outbreak of Listeria Infections Linked to Unknown Source – Map
Final Update
Posted November 7, 2019 at 1:00 PM ET
This outbreak appears to be over. CDC, several states, and federal partners investigated a multistate outbreak of Listeria monocytogenes infections. A single, common source of infections was not identified. Learn more about how you can take steps to prevent Listeria infection.
People infected with the outbreak strain of Listeria monocytogenes, by state of residence, as of November 7, 2019 (n=24)
| State | Ill People |
|---|---|
| California | 4 |
| Florida | 1 |
| Iowa | 1 |
| Illinois | 4 |
| Indiana | 1 |
| Kansas | 1 |
| Kentucky | 1 |
| Michigan | 1 |
| Missouri | 3 |
| New York | 2 |
| Ohio | 2 |
| Oregon | 2 |
| Texas | 1 |
| Total | 24 |
Previous Maps
People infected with the outbreak strain of Listeria monocytogenes, by state of residence, as of August 23, 2019 (n=24)
| State | Ill People |
|---|---|
| California | 4 |
| Florida | 1 |
| Iowa | 1 |
| Illinois | 4 |
| Indiana | 1 |
| Kansas | 1 |
| Kentucky | 1 |
| Michigan | 1 |
| Missouri | 3 |
| New York | 2 |
| Ohio | 2 |
| Oregon | 2 |
| Texas | 1 |
| Total | 24 |
