*These data are provisional and may be revised or adjusted in the future.
Cumulative Dead Bird Infections by County - Pennsylvania, 2004
| Allegheny County | 3 |
| Bucks County | 4 |
| Centre County | 4 |
| Chester County | 3 |
| Clarion County | 1 |
| Clinton County | 1 |
| Crawford County | 2 |
| Cumberland County | 2 |
| Dauphin County | 2 |
| Elk County | 1 |
| Erie County | 4 |
| Greene County | 1 |
| Indiana County | 1 |
| Lancaster County | 3 |
| Lawrence County | 4 |
| Lehigh County | 3 |
| Northumberland County | 1 |
| Philadelphia County | 1 |
| Susquehanna County | 1 |
| Venango County | 1 |
| Warren County | 1 |
| Washington County | 1 |
| York County | 1 |
![[Clickable Map of USA]](images/pa_bird_map_weekfinal.gif)
100 km
![[Epi curve - Vertical bar graph showing number of incidents for each of 52 weeks]](images/pa_bird_epicurve_weekfinal.png "[Epi curve - Vertical bar graph showing number of incidents for each of 52 weeks]")
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