 The first human case for 2007 was reported in DuPage County on June
15.
"So far this year six people in Illinois are confirmed to have
West Nile virus, compared with only one human case at this time last
year," said Dr. Eric E. Whitaker, Illinois Department of Public
Health director. "While we do not want to frighten the public, we do
want to spread the message that protecting yourself from mosquito
bites is the best prevention."
There have been six counties this year to report positive
mosquito samples. They are Cook, DuPage, Lake, Lee, Sangamon and
Tazewell. There have been no positive bird samples.
In 2006, the first positive mosquito sample was reported May 24
in DuPage County, and the first human case was reported Aug. 1 in
St. Clair County. 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 in Illinois.
Surveillance for West Nile virus in Illinois began May 1 and
includes laboratory tests on mosquitoes, dead crows, blue jays,
robins and other perching birds, as well as the testing of sick
horses and humans with West Nile-like disease symptoms. Citizens who
observe a sick or dying crow, blue jay, robin or other perching bird
should contact their local health department, which will determine
if the bird is to be picked up for testing.
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 illness, but some
may become ill three to 14 days after the bite of an infected
mosquito.
Only about two people out of 10 who are bitten by an infected
mosquito will experience any illness. Illness from West Nile is
usually mild and includes fever, headache and body aches, but
serious illness, such as encephalitis and meningitis, and death are
possible. People older than 50 years of age have the highest risk of
severe disease.
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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 take personal precautions to avoid mosquito bites.
Precautions include:
-
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 repellents 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 flowerpots, clogged roof gutters, old tires and any
other receptacles. Change water in birdbaths weekly. Properly
maintain wading pools, and stock ornamental ponds with fish.
Cover rain barrels with 16-mesh wire screen. 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.
Additional information about West Nile virus can be found at
www.idph.state.il.us/envhealth/wnv.htm, or call the West Nile
Virus Hotline at 866-369-9710 Monday through Friday, 8 a.m. to 5
p.m.
Every Wednesday during the season, the Illinois Department of
Public Health is distributing news releases updating West Nile virus
activity in the state. Updates throughout the week can be found at
www.idph.state.il.us/envhealth/wnv.htm.
[Text from
Illinois
Department of Public Health news release received from the
Illinois Office of Communication and Information]
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