*These data are provisional and may be revised or adjusted in the future.
Cumulative Dead Bird Infections by County - West Virginia, 2003
| Barbour County | 1 |
| Berkeley County | 1 |
| Boone County | 1 |
| Braxton County | 1 |
| Cabell County | 1 |
| Fayette County | 1 |
| Gilmer County | 1 |
| Grant County | 1 |
| Greenbrier County | 1 |
| Harrison County | 1 |
| Jackson County | 2 |
| Jefferson County | 1 |
| Kanawha County | 1 |
| Lewis County | 1 |
| Logan County | 1 |
| Marion County | 3 |
| Marshall County | 1 |
| Mason County | 3 |
| Mineral County | 1 |
| Monongalia County | 2 |
| Monroe County | 1 |
| Morgan County | 1 |
| Nicholas County | 3 |
| Ohio County | 1 |
| Pendleton County | 1 |
| Preston County | 1 |
| Putnam County | 1 |
| Randolph County | 1 |
| Ritchie County | 1 |
| Roane County | 2 |
| Wayne County | 1 |
| Webster County | 1 |
| Wetzel County | 1 |
| Wood County | 2 |
| Wyoming County | 1 |