These county and county equivalent data data are based on information voluntarily reported by state health officials and federal agenciesto CDC. West Nile Virus (WNV) infection was determined by laboratory testing on animals other than wild birds (such as pets, livestock, and wildlife) with symtoms of WNV infection. Note that the map includes all areas of positive (confirmed or
probable) WNV results, but not necessarily all areas with submitted samples or no reports.
| Note: These data are provisional and may be revised or adjusted in the future |
| Adams County | 6 |
| Arapahoe County | 2 |
| Baca County | 10 |
| Bent County | 5 |
| Boulder County | 3 |
| Cheyenne County | 4 |
| Conejos County | 1 |
| Crowley County | 2 |
| Custer County | 1 |
| Douglas County | 1 |
| El Paso County | 6 |
| Elbert County | 7 |
| Fremont County | 11 |
| Grand County | 1 |
| Huerfano County | 2 |
| Jefferson County | 3 |
| Kit Carson County | 4 |
| Larimer County | 31 |
| Las Animas County | 3 |
| Lincoln County | 5 |
| Logan County | 34 |
| Mesa County | 1 |
| Moffat County | 1 |
| Morgan County | 30 |
| Otero County | 29 |
| Phillips County | 6 |
| Prowers County | 8 |
| Pueblo County | 37 |
| Sedgwick County | 11 |
| Washington County | 7 |
| Weld County | 99 |
| Yuma County | 9 |
| Cumulative Report Maps for the year 2002, Colorado | |||
| Cumulative Human | Cumulative Bird | Cumulative Mosquito | Cumulative Sentinel Flock |
Colorado Department of Public Health and Environment