Volume 13, Number 11—November 2007
Dispatch
Environmental Predictors of Human West Nile Virus Infections, Colorado
Jennifer L. Patnaik*
, Lara Juliusson*, and Richard L. Vogt*
, Lara Juliusson*, and Richard L. Vogt*
Table 2
Proportion of human infections following positive and negative environmental specimens, Tri-County Health Department, Colorado, 2003
| Specimens | No. human infections/ environmental-positive results (%) | No. human infections/ environmental-negative results (%) |
|---|---|---|
| All specimens | 133/262 (50.8) | 591/687 (86.0) |
| Birds | 62/105 (59.0) | 82/98 (83.7) |
| Mosquito pools | 38/57 (66.7) | 154/203 (75.9) |
| Equines | 17/55 (30.9) | 30/32 (93.8) |
| Sentinel chickens | 16/45 (35.6) | 325/354 (91.8) |
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