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Crow Found in Belmont Tests Positive for West Nile Virus

Two other birds also found recently in San Mateo County have been deemed West Nile Virus chronic.

An American Crow found in late September in Belmont has tested positive for West Nile Virus, San Mateo County Mosquito & Vector Control District officials said Thursday.

In addition, a Hermit Thrush found in Foster City and a House Finch found in San Carlos have been deemed West Nile Virus chronic.

The crow was reported in Belmont on Sept. 27, county officials said. The House Finch was reported in San Carlos the same day, and the Hermit Thrush in Foster City on Sept. 26.

An animal that tests positive for West Nile Virus indicates a current infection (active viremia) that was acquired this season. One that is deemed West Nile Virus chronic indicates a low level of infection that was not acquired this season.

Both levels of infection will trigger deployment of C02 traps at the reported site and immediate neighborhood. In turn, the pool of mosquitoes collected are sent to the Center for Vectorborne Diseases Laboratory in Davis for WNV testing. So far, all mosquito pools tested for West Nile Virus this year have been negative.

Residents may report dead birds and squirrels to 1-877-WNV-BIRD.

Man U October 12, 2012 at 02:11 AM
That is why these flying rats are hunted in the UK and states across the country.
Robert Riechel October 12, 2012 at 04:15 PM
Thanks Laura
Laura Dudnick October 13, 2012 at 02:41 AM
Thanks for reading, Robert!

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