West Nile Virus

8/11/2022 | Posted in: News

An increase in mosquito samples throughout the county testing positive for West Nile virus (WNV) has the DuPage County Health Department (DCHD) reminding residents to protect themselves from mosquito bites and the risk of contracting WNV.

The key factors in determining the degree of West Nile Virus activity are temperatures and rainfall. In hot, dry weather, mosquitoes that carry West Nile virus (primarily Culex mosquitoes) breed in areas with stagnant water, such as street catch basins, ditches, birdbaths, flowerpots, and buckets, where the mosquitoes multiply rapidly.

Protect yourself, protect your family, and prevent mosquitoes from breeding around your home by following the “4 Ds of Defense”:

  • Drain: Drain items that collect standing water around your home, yard, or business. Scrub and refill pet water dishes and birdbaths regularly (at least weekly).
  • Defend: Use an insect repellent containing DEET when outdoors and reapply according to directions.
  • Dress: Wear long pants, long sleeves, and closed-toe shoes when outside to cover the skin.
  • Dusk to Dawn: Wear repellent outdoors during these prime times for mosquito activity.

Residents should check the Personal Protection Index (PPI) on the DuPage County Health Department’s website for the current WNV activity.

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