County tracks indicators of West Nile virus

As of May 24, no West Nile virus cases in birds, horses or humans had been confirmed in Larimer County.

The county health department, with a $100,335 budget, is proceeding with a public education program, conducting a community survey, mapping mosquito habitat and waiting for recommendations on if and where to apply larvicide.

The county is also testing dead birds. Birds that have died from the virus serve as an indicator that West Nile virus is being transmitted by mosquitoes and as an early warning that human infections may soon appear.

Larimer County led the state last year with 544 human cases of West Nile virus. Nine people died from their infections, and many others had their lives profoundly affected after a bout with the virus.

County health officials noted that no matter how much work is done on mosquito control, the best way to ensure personal safety is to take appropriate precautions.

To help insure that everyone has access to good information, two health educators have been hired to help "fight the bite" in Larimer County. The educators are available to speak to groups of all kinds, including municipalities, civic and service organizations, sports groups and the general public. To schedule an educational program, call 498-6752 or 669-4581.

"What we learned last year was that in spite of the many news stories and brochures there were far too many people who didn't know or understand how to prevent getting this disease," said Ann Watson, health education supervisor.

The health department also needs help from area residents who find dead birds. West Nile virus is transmitted by infected mosquitoes that bite a bird and infect it. Other mosquitoes then feed on the bird's blood and become infected. These mosquitoes then pass the virus on to humans and to other animals.

Dr. Adrienne LeBailly, director of the health department, advised individuals who find a dead crow, magpie, jay or raven on their property to call the "West Nile Virus Bird Report line" at 498-6792 to find out if it is appropriate for testing. If it is suitable for testing, individuals are asked to place the bird in a plastic bag and to keep it cool. Avoid direct contact with the bird, by using gloves, a shovel or a plastic bag turned inside out when picking up the specimen. Instructions will be given on how to submit the bird.

Birds such as sparrows, starlings, pigeons, finches, robins and blackbirds are not being tested, but people may call and report these species of birds so that the health department can track locations where birds appear to be dying.

Color pictures and descriptions of birds eligible for testing can be viewed at www.cdphe.state.co.us/dc/Zoonosis/wnv/CorvidSubmission.pdf

Health officials say people can best protect themselves and their families from mosquito bites by using insect repellent containing DEET and limiting outside activity from dusk to dawn.