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Cases of West Nile Virus in Chicago's Suburbs

The CDC announced that this is the worst year for West Nile Virus since it started tracking in 1999. Check out how your area is faring in our interactive map of diagnosed cases in humans and mosquitoes.

The Centers for Disease Control and Prevention announced this week that reported cases of West Nile Virus are at an all time high.

“The 1,118 cases reported thus far in 2012 is the highest number of West Nile virus disease cases reported to CDC through the third week in August since West Nile virus was first detected in the United States in 1999,” the CDC reported.

While Illinois does not rank among the top five states in terms of cases, there have been 21 reported human cases of West Nile Virus in Illinois as of Aug. 21. Those cases have been clustered in the Chicago area, with 13 human cases in Cook County and one in Lake County.

In the map above, Patch charted both cases of West Nile Virus confirmed in both humans and mosquitoes, according to our reporting. 

The CDC lists the following as symptoms of West Nile Virus:

  • Serious Symptoms in a Few People. About one in 150 people infected with WNV will develop severe illness. The severe symptoms can include high fever, headache, neck stiffness, stupor, disorientation, coma, tremors, convulsions, muscle weakness, vision loss, numbness and paralysis. These symptoms may last several weeks, and neurological effects may be permanent.
  • Milder Symptoms in Some People. Up to 20 percent of the people who become infected have symptoms such as fever, headache, and body aches, nausea, vomiting, and sometimes swollen lymph glands or a skin rash on the chest, stomach and back. Symptoms can last for as short as a few days, though even healthy people have become sick for several weeks.
  • No Symptoms in Most People. Approximately 80 percent of people (about 4 out of 5) who are infected with WNV will not show any symptoms at all.

And here are the organization’s recommendations on how to avoid getting sick in the first place:

  • When you are outdoors, use insect repellent containing an EPA-registered active ingredient. Follow the directions on the package.
  • Many mosquitoes are most active at dusk and dawn. Be sure to use insect repellent and wear long sleeves and pants at these times or consider staying indoors during these hours.
  • Make sure you have good screens on your windows and doors to keep mosquitoes out.
  • Get rid of mosquito breeding sites by emptying standing water from flower pots, buckets and barrels. Change the water in pet dishes and replace the water in bird baths weekly. Drill holes in tire swings so water drains out. Keep children's wading pools empty and on their sides when they aren't being used.
BUTCH August 24, 2012 at 07:54 PM
The mayors of Lombard and Evergreen Pk were victims OF THE VIRUS the Lombard mayor did not make it , i ADVISE EVERYONE to check the empty and unsold or rented houses in the neighborhood and see if there is a uncovered pool in the back yard I have one next door to me in GLENWOOD it is not advisable for the elderly and those with health issues to be outdoors due to OZONE-radiation . The MAYOR of GLENWOOD sees no danger for me a 74 year old cardiac patient to have a open pool with a tattered tarp next door and in fact thinks I need to chill out, they have memory issues themselves they were scheduled to remove the pool yesterday but due to???? and did not have the decency to tell me , I don't think he realizes the mosquito that carries the virus can travel a few blocks to his house and they like to bite MAYORS.
BUTCH August 24, 2012 at 10:33 PM
Tony the Mayor and Village admin were here last Tuesday to see first hand the pool and danger and the village Inspector the week before, I do mean business I am putting it here for everyone to read the EPA and Dept Health have also been told there is nobody in the Village who does not know about it who would matter so if you read about the virus hitting THE REGION U HEARD IT HERE FIRST
Carol Anaski-Figurski August 24, 2012 at 11:05 PM
There's a stagnant pond just outside of the traughber jr high. Is it possible to put a mosquitoe device testing device and a small circulating fountain?
Snickerdoodle August 25, 2012 at 03:50 AM
I'd be careful down in Springfield- a lot of stagnation down there.
BUTCH August 27, 2012 at 06:45 PM
they claim they put larvae killing pellets in last Friday of course we had a soak-er over the weekend, now T 1:40 pm 27 AUG the pool has more than 2in of water and the tattered tarp another inch, THE village officials are nowhere to be seen or heard from I lleft message on their voice and email, this is the Glenwood way of culling the Seniors and disabled

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