1. Drain - Mosquitoes breed in water! Drain any standing water in your yard each week. Bird baths, clogged gutters and kiddie pools are common breeding sites. 
  2. Dress - Wear lightweight, long-sleeved shirts and long pants while outdoors. Spray clothing with insect repellent since mosquitoes may bite through clothing.
  3. Defend - Apply insect repellent sparingly to exposed skin. Use an approved repellent according to its label. During the peak WNV season (mid-June through August) infected mosquitoes can be found all along the Front Range so use repellent where you live, work and recreate.
  4. Dawn/Dusk - The best way to avoid West Nile virus is to prevent mosquito bites. Stay indoors if possible, during peak mosquito biting hours (generally from dusk to early dawn; sunset to 1.5 hours after sunset appear to be the most active "feeding time" for the species that carry West Nile virus).