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Diseases and conditions
West Nile virus alert levels

West Nile virus activity in Clark County

Current alert level:
Alert level 2

Help to fight West Nile virus

Report dead birds found in Clark County online or call (360) 397-8482.

 

West Nile virus alert level definitions

Alert level

Description

Level 0
No risk of human outbreak

Off season. No significant mosquito activity.

Level 1
Remote risk of human outbreak

No West Nile virus activity (no birds, mosquitoes, horses, or people have tested positive for West Nile virus) in the state, Clark County, or bordering counties. Conditions are not conducive for mosquitoes to breed.

Level 2
Low risk of human outbreak

No West Nile virus activity detected in Clark County but environmental conditions are suitable for mosquitoes to breed.

Level 3
Moderate risk of human outbreak

Environmental conditions are ideal for mosquitoes and West Nile virus is detected in mosquitoes and dead birds in Clark County.

Level 4
High risk of human outbreak

Environmental conditions are ideal for mosquitoes and West Nile virus is detected in mosquitoes and dead birds in Clark County. One or more equine (horse) cases has been identified and/or one or more human cases have been diagnosed in Clark County.

Level 5
Human outbreak in progress

Multiple confirmed human cases with conditions favoring continued transmission to people, including persistent high infection rates in mosquitoes.

 

Current Human Disease West Niles Virus cases by Local Jurisdiction - Washington

Current West Nile Virus Human data for Unites States

 

 

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Spanish contact information

(360) 397-8000 ext. 7205

Russian contact information

(360) 397-8000 ext. 7214