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West Nile Virus

Please Be Aware!!

  • Mosquitoes infected with West Nile virus have been present in large numbers in northern Colorado throughout the summer of 2007.
  • West Nile virus circulates in mosquitoes in Larimer County throughout early fall until the first frost.
  • Until the first frost, it continues to be important to protect yourself from mosquito bites whenever and wherever you are outdoors.

Current Statistics - 2007

Larimer County Human Cases: 96
Colorado Human Cases: 469

Larimer County
Positive Birds: 8
Positive Mosquito Pools: 226

Larimer County WNV Risk
Low

Past Years Statistics

Dead Bird Information

Larimer County is now testing Corvids only for WNV. Please see the Corvid identification chart [pdf]. If you have a Corvid please call 970-498-6775.

The bird must be dead less than 48 hours to be tested.

Please report all other dead birds to the Colorado Helpline at 1-877-462-2911.

Mosquito Control

11/1/2007: 

For information about mosquito control or to report standing water in:
   Fort Collins - 970-663-5697
   Loveland - 970-962-2583
   Larimer County - 970-498-6797

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FAQ about Mosquito Control

Colorado Mosquito Control

National Pesticide Information Center