*These data are provisional and may be revised or adjusted in the future.
Cumulative Veterinary Disease Cases by County - Pennsylvania, 2003
| Adams County | 24 |
| Allegheny County | 1 |
| Berks County | 27 |
| Bucks County | 34 |
| Centre County | 1 |
| Chester County | 98 |
| Columbia County | 2 |
| Cumberland County | 19 |
| Dauphin County | 6 |
| Delaware County | 6 |
| Fayette County | 1 |
| Franklin County | 16 |
| Juniata County | 5 |
| Lancaster County | 168 |
| Lebanon County | 23 |
| Lehigh County | 5 |
| Lycoming County | 2 |
| Mercer County | 2 |
| Mifflin County | 2 |
| Montgomery County | 23 |
| Montour County | 1 |
| Northampton County | 2 |
| Northumberland County | 7 |
| Perry County | 5 |
| Philadelphia County | 1 |
| Schuylkill County | 3 |
| Snyder County | 2 |
| Sullivan County | 1 |
| Susquehanna County | 1 |
| Union County | 11 |
| Washington County | 1 |
| York County | 41 |