*These data are provisional and may be revised or adjusted in the future.
Cumulative Dead Bird Infections by County - Missouri, 2003
| Adair County | 1 |
| Andrew County | 3 |
| Atchison County | 1 |
| Audrain County | 1 |
| Benton County | 1 |
| Bollinger County | 1 |
| Boone County | 7 |
| Buchanan County | 7 |
| Camden County | 3 |
| Carroll County | 1 |
| Cass County | 3 |
| Christian County | 3 |
| Clay County | 11 |
| Cole County | 2 |
| Crawford County | 2 |
| Dade County | 1 |
| Dallas County | 1 |
| DeKalb County | 1 |
| Franklin County | 3 |
| Gasconade County | 1 |
| Gentry County | 1 |
| Greene County | 7 |
| Harrison County | 2 |
| Henry County | 1 |
| Hickory County | 2 |
| Holt County | 1 |
| Howell County | 1 |
| Jackson County | 6 |
| Jasper County | 4 |
| Jefferson County | 6 |
| Johnson County | 2 |
| Laclede County | 7 |
| Lafayette County | 1 |
| Livingston County | 1 |
| Madison County | 1 |
| New Madrid County | 2 |
| Newton County | 1 |
| Nodaway County | 2 |
| Ozark County | 1 |
| Pemiscot County | 2 |
| Pettis County | 1 |
| Pike County | 1 |
| Platte County | 5 |
| Polk County | 4 |
| Pulaski County | 2 |
| Putnam County | 1 |
| Ralls County | 2 |
| Randolph County | 2 |
| Shelby County | 3 |
| St. Charles County | 6 |
| St. Louis City | 10 |
| St. Louis County | 1 |
| Taney County | 2 |
| Texas County | 2 |
| Washington County | 1 |
| Wayne County | 1 |
| Webster County | 3 |
| Worth County | 2 |