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Mosquitoes: What to Do After a Hurricane or Flood

Per CDC:

Key points

  • Adult mosquitoes do not generally survive high winds during a hurricane.

  • Immediately after a hurricane, nuisance mosquitoes hatch.

  • Prevent mosquito bites by using insect repellent, wearing proper clothing, and wearing permethrin-treated clothing.

  • Control mosquitoes by removing standing water.

  • Use window and door screens or air conditioning when possible.


About mosquitoes that spread germs

  • The types of mosquitoes that can spread viruses may increase 2 weeks after a hurricane.

    • These mosquitoes can increase in areas that did not flood but received more rainfall than usual.

    • It can take several more weeks before mosquitoes could start spreading viruses to people.

    • Increased rainfall may result in increased hatching of mosquito eggs.

  • In areas with ongoing spread of viruses like dengue and West Nile, you may be at increased risk of getting infected.






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