Situation Summary
Confirmed Reported Human Cases
65
Affected Animals
125,566,785
Most Affected State
California
Human Cases with Unknown Source
2
Person To Person Spread
None
Public Health Risk
Low
Dairy Cattle
Ongoing multi-state outbreak
Wild Birds
Widespread
Poultry Flocks
Sporadic outbreaks
Mammals
Sporadic infections
Human Cases Over Time
Last updated: 12/25/2024, 04:12:40 PM
Source: CDC
Cumulative Data Collection Start Dates:
- Wild birds: January 20, 2022
- Poultry: February 8, 2022
- Humans in the U.S.: April 28, 2022
- Dairy cattle: March 25, 2024
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Case Details
| Exposure Source | |||||
|---|---|---|---|---|---|
| State | Dairy Herds | Poultry Farms | Other Animal | Unknown | Total |
| California | 35 | 0 | 0 | 1 | 36 |
| Colorado | 1 | 9 | 0 | 0 | 10 |
| Iowa | 0 | 1 | 0 | 0 | 1 |
| Louisiana | 0 | 0 | 1 | 0 | 1 |
| Michigan | 2 | 0 | 0 | 0 | 2 |
| Missouri | 0 | 0 | 0 | 1 | 1 |
| Oregon | 0 | 1 | 0 | 0 | 1 |
| Texas | 1 | 0 | 0 | 0 | 1 |
| Washington | 0 | 11 | 0 | 0 | 11 |
| Wisconsin | 0 | 1 | 0 | 0 | 1 |
| Total | 39 | 23 | 1 | 2 | 65 |
Last updated: 12/25/2024, 04:12:44 PM
Source: CDC
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