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Be on Guard for West Nile Virus

The DuPage County Health Department is advising residents to enjoy the outdoors this Labor Day weekend, but to ensure protection against mosquitoes.

The Health Department's WNV Personal Protection Index is at Level 3 (high risk) due to the number of mosquito batches testing positive for WNV. Level 3 indicates high numbers of infected mosquitoes in most areas. 

The Health Department recommends following the 4 Ds of Defense


  • Drain standing water around your home and yard;
  • Defend by using insect repellent containing DEET when outdoors; 
  • Dress with long sleeves, long pants and closed-toe shoes when outside; 
  • Dusk to Dawn, wear repellant when mosquitoes are most active.