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First Positive Results for West Nile Virus Found in Mosquitoes in Champaign County

FOR IMMEDIATE RELEASE
August 30, 2007

Contact
Matthew Swearingen, Environmental Health
(217) 373-7900

Lori A. Holmes, Public Relations
(217) 531-2927

First Positive Results for West Nile Virus Found in Mosquitoes in Champaign County

Champaign-Urbana Public Health District Urges Residents to Take Simple Precautions

Champaign, IL – Champaign-Urbana Public Health District (CUPHD), announced that mosquito samples collected at South Farms have been confirmed as the first positive test results in Champaign County this year for West Nile Virus.  The positive mosquito samples were collected by the Illinois Natural History Survey.  The two positive samples were found in the same location as a couple hundred negative samples.  There have been no positive mosquito samples or positive birds collected by CUPHD.  There have been no reported positive human cases in Champaign County.

“CUPHD realizes that West Nile Virus is a concern for our community and would like to remind our citizens to take precautionary steps to avoid mosquito exposure.” said Jim Roberts, Director of Environmental Health at the Champaign-Urbana Public Health

District.  “The bulk of mosquito exposure can be reduced by simply remembering the “five D’s”:  Drain the water from potential mosquito breeding sites, minimize the time spent outdoors between Dusk and Dawn, Dress properly, and apply mosquito repellents containing DEET.”

Last year 77 of the state’s 102 counties were found to have a West Nile positive bird, mosquito, horse or human case.  A total of 215 human cases of West Nile disease, including 10 deaths were reported last year.

West Nile Virus is transmitted through the bite of a mosquito that has picked up the virus by feeding on an infected bird.  Most people with the virus have no clinical symptoms of the illness, but some may become ill three to 14 days after the bite of an infected mosquito.  Only about two out of 10 who are bitten by an infected mosquito will experience any illness.  It is estimated that only 20% of those infected will develop West Nile Fever, and of those only 1 in 150 will develop a more severe form of the disease.

Symptoms of West Nile are usually mild and include fever, headache, body aches, occasionally with a skin rash on the trunk of the body and swollen lymph glands.  Serious illness, such as encephalitis, meningitis, and death are possible in extreme cases.  Persons older than 50 years of age have the highest risk of severe disease.

The best way to prevent West Nile disease or any other mosquito-borne illness is to reduce the number of mosquitoes around your home and to take personal precautions to avoid mosquito bites.  Avoid being outdoors when mosquitoes are most active, especially between dusk and dawn.  Use prevention methods whenever mosquitoes are present.

  • When outdoors, wear shoes and socks, long pants and a long-sleeved shirt, and apply insect repellent that includes DEET, picaridin or oil of lemon eucalyptus according to label instructions. Consult a physician before using repellants on infants.
  • Make sure doors and windows have tight-fitting screens. Repair or replace screens that have tears or other openings.  Try to keep doors and windows shut, especially at night.
  • Eliminate all sources of standing water that can support mosquito breeding, including water in bird baths, ponds, flowerpots, wading pools, old tires and any other receptacles. In communities where there are organized mosquito control programs, contact your municipal government to report areas of stagnant water in roadside ditches, flooded yards and similar locations that may produce mosquitoes.

Public health officials believe that a hot summer could increase mosquito activity and the risk of disease from West Nile virus.

The cities of Champaign, Urbana, and Savoy and the University of Illinois UrbanaChampaign work with the Medical Entomology program with the Illinois Natural History Survey to conduct mosquito and West Nile Virus surveillance and management.

If you have any questions regarding mosquito or virus monitoring, please contact the Environmental Health Division of CUPHD at 217-373-7900 or Dr. Richard Lampman at the Illinois Natural History survey at 217-333-1186.

For more information about CUPHD's programs and services, visit us on the web at www.c-uphd.org or call 217-352-7961.

 

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Download 2007-09-13-Positive-Mosquito-Sample-PR