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Posted on: July 17, 2019

Make Your Home Mosquito-Free this Summer

Protect yourself from mosquitoes this summer! As well as being a pest, mosquitoes can carry numerous diseases that can make people and animals sick. The disease of most concern in Southern California is the West Nile virus. Spread by mosquito bite, West Nile can cause flu like symptoms including fever, headache, and nausea. Gradation of the virus can lead to stroke-like symptoms, coma, paralysis and even death. There are currently no confirmed human cases of West Nile virus in Orange County, however two dead birds collected from the City of Tustin indicated traces of West Nile virus. So far in the state, six counties show West Nile virus activity in dead birds and mosquito samples; no human cases have been reported.

Orange County is also home to invasive Aedes mosquitoes, which can transmit Zika, dengue, chikungunya, and yellow fever. There have been no local outbreaks of these viruses in the county, however the presence of Aedes mosquitoes increases the risk. These mosquitoes are now established in 28 cities and unincorporated areas around the county.

Reduce your chances of getting bit by mosquitoes this summer by eliminating mosquito breeding sites and reducing your exposure to disease-carrying mosquitoes.

 Tips for preventing mosquitoes:

  • Inspect your property regularly for standing water, and tip or toss any containers filled with water at least once a week.
  • Close all unscreened doors and windows to prevent mosquitoes from entering your home or space; repair broken or damaged screens.
  • Pour out water from potted plant saucers to eliminate mosquito breeding.
  • Remove trash and clutter. This includes discarded tires, buckets, tarps and any other items that could collect water.
  • Wear long-sleeved shirts and long pants, and opt for lighter colored clothing when spending time outdoors.

Orange County residents are urged to report unusual numbers of mosquitoes, or day-biting mosquitoes, to OCMVCD. For more information, please contact the Orange County Mosquito and Vector Control District at (714) 971-2421 or (949) 654-2421, or visit

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