Prevention of mosquito bites

How to prevent mosquito bites outdoors?

  • Avoid outdoor activities at times of the day when mosquitoes are most active (usually dusk and night). For more details, see the section on biting behavior.
  • Use clothing that covers arms, legs and feet.
    • Choose loose-fitting clothes that don't stick to the skin. If you're wearing tight-fitting clothes, it's best to wear tightly woven textiles to prevent mosquitoes from biting through the clothing.
    • Light colors attract less heat and are therefore preferable.
  • Use mosquito repellents. If you use a repellent at the same time as a sunscreen, be sure to apply the sunscreen at least 20 minutes before the repellent, and follow the application instructions for both products. Most repellents on the market have the following active ingredients:      
    • DEET repellent is the most effective. Use products containing at least 20% DEET, and 50% in areas where mosquitoes carry infectious diseases. Note that concentrations higher than 50% should not be used directly on the skin (but can be used on clothing).
    • Icaridine or picaridine. Use products containing at least 20% of the repellent.
    • IR 35/35. Less effective than DEET or icaridin. Use concentrations of 30% minimum for adults.
    • Citriodiol is derived from eucalyptus oil. Use products with a repellent concentration of 20-25%.


How can I prevent mosquito bites at home?

  • Use screens for windows and ventilation holes.
  • A fan can deter and keep mosquitoes away.
  • Air conditioning maintains a low temperature and reduces the risk of mosquito bites, but does not provide complete protection and should therefore be used in combination with other preventive measures.
  • Sleep under a mosquito net, preferably treated with an insecticide.
  • Use an insecticide if necessary (in a closed room when you're not there, or in a well-ventilated room when you are).