How is dengue prevented?

Updated: May 03, 2019
  • Author: Darvin Scott Smith, MD, MSc, DTM&H; Chief Editor: Michael Stuart Bronze, MD  more...
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Answer

The only way to truly prevent dengue virus acquisition is to avoid being bitten by a vector mosquito. Although this can be accomplished by avoiding travel to areas where dengue is endemic, that is not an ideal strategy because it would require a person to avoid most tropical and subtropical regions of the world, many of which are popular travel and work destinations. Other measures are as follows:

  • Wear N,N-diethyl-3-methylbenzamide (DEET)–containing mosquito repellant
  • Wear protective clothing, preferably impregnated with permethrin insecticide
  • Remain in well-screened or air-conditioned places
  • The use of mosquito netting is of limited benefit, as Aedes are day-biting mosquitoes
  • Eliminate the mosquito vector using indoor sprays

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