The D.C. Department of Health has announced that an additional twelve crows have tested positive for West Nile virus (WNV), bringing the total number this year in the District to 22. The crows were found between August 6th and August 9th in the Northeast quadrant of the city. The first bird tested positive on July 16th.


The Department has stepped up mosquito surveillance and larviciding in that Northeast corridor as well as continuing surveillance and larviciding throughout the District. Representatives from the Department of Health are distributing literature from door-to-door in the affected area to alert residents of the need to reduce potential mosquito breading sites.


There have been no horse or human cases of the WNV in D.C. and no mosquitoes have tested positive for the virus in the District.


West Nile virus is transmitted to horses and humans by mosquitoes that have obtained the virus from infected birds

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