*These data are provisional and may be revised or adjusted in the future.
Cumulative Human Disease Cases by County - Ohio, 2003
| Adams County | 1 |
| Brown County | 1 |
| Butler County | 4 |
| Champaign County | 2 |
| Clark County | 3 |
| Clermont County | 2 |
| Clinton County | 1 |
| Cuyahoga County | 22 |
| Darke County | 3 |
| Defiance County | 2 |
| Erie County | 1 |
| Franklin County | 4 |
| Fulton County | 1 |
| Geauga County | 1 |
| Greene County | 2 |
| Hamilton County | 4 |
| Hancock County | 2 |
| Holmes County | 3 |
| Huron County | 1 |
| Jackson County | 1 |
| Lake County | 1 |
| Licking County | 1 |
| Logan County | 1 |
| Lorain County | 6 |
| Lucas County | 3 |
| Mahoning County | 2 |
| Mercer County | 1 |
| Montgomery County | 2 |
| Morgan County | 1 |
| Paulding County | 2 |
| Portage County | 1 |
| Preble County | 3 |
| Putnam County | 3 |
| Sandusky County | 1 |
| Shelby County | 1 |
| Stark County | 3 |
| Trumbull County | 3 |
| Union County | 1 |
| Warren County | 1 |
| Washington County | 1 |
| Wayne County | 4 |
| Williams County | 1 |
| Wood County | 3 |
| Wyandot County | 1 |