2008 was the most active year for West Nile virus in Washington to date. There were a total of 3 humans, 41 horses/other mammals, 24 birds and 57 mosquito samples that tested positive for the virus. Last year was also the first year that WNv was detected in Grant County; 10 of the positive horses, 1 of the birds and 2 of the mosquito samples were detected in our county. Fortunately, no humans have tested positive for WNv.
Let this be a reminder to remain vigilant this year in avoiding mosquito bites, eliminating standing water around your home and vaccinating your horses.
Click this link to view a map of the current West Nile virus activity in Washington.
Mosquitoes are most active at dawn and dusk during the months of May through October. Always use an effective mosquito repellent while outdoors during these times. Recommended repellents are those that contain DEET (N, N-diethyl-m-toluamide), Picaridin, oil of lemon eucalyptus, PMD (the synthesized version of oil of lemon eucalyptus), and IR3535. Read and follow instructions on the label. To learn more on the safe use of mosquito repellent, clink on this link to the Centers for Disease Control and Prevention.
West Nile Virus Surveillance: During "mosquito season", usually
May through October, the Health District participates in West Nile virus surveillance by tracking and testing certain dead birds.
How do I report a dead bird?
   
West Nile virus infects certain wild birds. Of those infected,
particular birds (crows, jays, ravens, and magpies) tend
to become sick and die. Increasing numbers of dead birds may
be an indication of West Nile virus in our community. You
can help by reporting dead crows and other birds online or to the Grant
County Health District at (509) 754-6060 ext. 0. You may be contacted to determine whether the bird is suitable for testing. If you have not been contacted within 24 hours, please safely dispose of the bird.
While there is no evidence that you can get West Nile virus from handling dead birds, avoid bare-handed contact. Use a shovel, robber gloves or a double inverted grocery bag to pick up the carcass. Dead birds not collected for testing should sealed in double plastic bags and discarded in an outdoor garbage can.
Although it is important for public health officials to track dead bird sightings, many dead birds will not be collected or tested. In general, the birds listed above will be collected and tested only if they are freshly dead with no apparent injuries. If you find a dead bird that you think might be suitable for testing, it should be kept cold until it is collected.
For more information on West Nile virus:
Click here for the Washington State Department of Health website
Click here for the CDC website
Other vector-borne disease topics can be found here.
If you would like additional information about the local vector control program, please visit our environmental health programs page here.
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