Weekly West Nile Virus Test Results

Week of Sept. 17, 2017 

This week Forest Preserve District staff collected 0 positive West Nile virus samples. This brings the total number of positive West Nile virus sample(s) for the 2017 season to 9. District staff began sampling for the presence of West Nile virus on June 1, 2017.

Currently, the District is aware of 252 positive mosquito samples in DuPage County, 0 of which has been found on District property this week. To date the DuPage County Health Department has reported 4 positive human cases for DuPage County. The DuPage County Health Department provides an interactive West Nile virus case map

As of this week, the Illinois Department of Public Health has reported 37 human cases, 1 human death, 20 positive birds, and 1,814 positive mosquito batches in Illinois. Here's up-to-date IDPH mosquito surveillance data

To avoid mosquito bites and protect yourself from West Nile virus, take these simple, common sense precautions: 

1. Avoid being outdoors when mosquitoes are most active, especially between dusk and dawn.

2. When outdoors, wear shoes and socks, long pants and a long-sleeved shirt, and apply insect repellent that includes DEET, picaridin, oil of lemon eucalyptus or IR 3535 according to label instructions. Consult a physician before using repellents on infants.

3. 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.

4. 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 areas outside of Forest Preserve property, contact your municipal government to report stagnant water in roadside ditches, flooded yards and similar locations that may produce mosquitoes. 

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

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