Insect Repellents Help Prevent Malaria and Other Diseases Spread by Mosquitoes (2024)

Every year, millions of U.S. residents travel to countries where malaria and other diseases spread by mosquitoes (mosquito-borne) are found. These diseases can cause serious illness and death in some cases. Preventing mosquito-borne infections is very important to staying well when you travel.

Why do I need to use an insect repellent when I travel to an area with malaria?

An insect repellent will help protect you from mosquitoes that spread malaria and other diseases, such as dengue, chikungunya, and Yellow fever. You can use an insect repellent on your skin and clothes to keep away (repel) insects.

Your doctor may also prescribe you a medication to prevent malaria (antimalarial drug).

Although antimalarial drugs are very effective, they are not 100% effective in preventing malaria. This is why you need to also use an insect repellent and take other steps to keep mosquitoes from biting you (mosquito avoidance).

In some areas where only a few cases of malaria
occur, CDC recommends mosquito avoidance as the
only way to prevent malaria.

Are insect repellents safe?

Most insect repellents that can be put on the skin must be registered by the U.S. Environmental Protection Agency (EPA) before they can be sold in stores.

EPA registration means the insect repellent has been tested and approved for human safety and is effective when used according to directions on the label. Before you buy an insect repellent, be sure to look on the label for EPA approval.

Which insect repellents will give me long-lasting protection against mosquitoes?

For hours of long-lasting protection, look for insect repellents with the following active ingredients:

  • DEET
  • IR3535
  • Oil of lemon eucalyptus (OLE)*
  • Picaridin (KBR 3023)

Some brand names of repellents include:

  • DEET products: Off!, Cutter, Sawyer, Ultrathon.
  • IR3535 products: Skin So Soft Bug Guard Plus Expedition, SkinSmart.
  • OLE products: Repel, Off! Botanicals.
  • Picaridin products (Autan, Bayrepel and icaridinoutside U.S.): Cutter Advanced, Skin So Soft Bug Guard Plus.

*”Pure” oil of lemon eucalyptus (essential oil) is not recommended. It has not been tested by EPA for safety and effectiveness

See a doctor or other healthcare provider 4-6 weeks before your trip to get any prescriptions, shots, and information you may need to stay healthy while you travel. Even if your trip is sooner, see a doctor to be safe. For more information visit CDC Travelers’ Health website at www.cdc.gov/travel

How do I use an insect repellent?

  • Always follow directions on the label.
  • Spray or rub the insect repellent onto your skin that is NOT covered by your clothes. Do not use under clothing.
  • Use just enough insect repellent to cover your skin not covered by clothing. Heavy use of insect repellent or pouring it all over your body is not necessary.
  • Never use insect repellents over cuts, wounds, or irritated skin.
  • Do not spray insect repellents directly on your face—spray it onto your hands first and then pat the insect repellent onto your face.
  • Do not spray or put insect repellents on your eyes or mouth, and put only a little around your ears.
  • Use separate sunscreen and insect repellent products. Put the sunscreen on first, then spray on the insect repellent.
  • After returning indoors, wash the insect repellent off your skin with soap and water or take a bath. This is especially important when you use insect repellents daily.
  • Wash any clothes you treated with insect repellent before wearing them again.

Can I use an insect repellent if I am pregnantor breastfeeding

Yes. Pregnant and breastfeeding women can use EPA-approved insect repellents. Always follow directions on the label.

Can I put insect repellent on my baby?

  • Do not put insect repellent on babies younger than 2 months of age.
  • Protect small babies under the age of 2 months by placing a fitted mosquito net around their infant seat or carrier.

How do I put insect repellent on a child?

  • Follow directions on the label.
  • See directions for how to use an insect repellent on this page.
  • Use no more than 30% DEET on a child.
  • Do not use insect repellent with lemon eucalyptus on children under the age of 3 years.

What other things can I do to prevent mosquito bites?

  • Wear a long-sleeved shirt, long pants, and a hat when you are outdoors.
  • Spray insect repellent on your clothes for extra protection or buy a product with permethrin to treat your clothes and bed net to repel insects.
  • Sleep in a well-screened or air-conditioned room, or sleep under a permethrin-treated bed net. This is because malaria mosquitoes mostly bite at night (dusk until dawn).
  • Stay indoors during the times biting mosquitoes are most active.

Always spray insect repellents in open areas and wash your hands after using

What should I do if I develop a rash or reaction to the insect repellent?

Stop using the insect repellent and wash the area with soap and water.
If you see a doctor about the reaction, take the repellent container with you. You can also call the Poison Help Hotline at 1-800-222-1222.


FOR MORE INFORMATION:

Visit the EPA website at www2.epa.gov/insect-repellents

Check out the CDC malaria website at www.cdc.gov/malariaor call toll-free the CDC Malaria Hotline at 1-855-856-4713

Insect Repellents Help Prevent Malaria and Other Diseases Spread by Mosquitoes (2024)

FAQs

Insect Repellents Help Prevent Malaria and Other Diseases Spread by Mosquitoes? ›

An insect repellent will help protect you from mosquitoes that spread malaria and other diseases, such as dengue, chikungunya, and Yellow fever. You can use an insect repellent on your skin and clothes to keep away (repel) insects. Your doctor may also prescribe you a medication to prevent malaria (antimalarial drug).

Do insect repellents help prevent malaria and other diseases spread by mosquitoes? ›

Insect repellents are one part of a more comprehensive program to control mosquitoes that transmit diseases such as dengue or Zika. Avoiding or preventing bites can help prevent transmission of dengue and any other vector-borne diseases.

How can we prevent malaria and other diseases spread by mosquitoes? ›

Malaria is a serious illness, but you can take steps to prevent it. You can lower your risk of infection by protecting yourself from mosquito bites and taking preventive medications. If you're traveling where malaria is common, talk to your provider several weeks before you leave.

What insect repellent prevents malaria? ›

While there are dozens of different insect repellents available, many of them formulated with “natural ingredients”, only those containing DEET or Picaridin provide effective protection against malaria-carrying mosquitos. DEET inhibits the mosquito's ability to sniff out and attack areas of exposed skin.

What is the purpose of insect repellent? ›

Why use insect repellents? Insect repellents are used to repel mosquitoes, ticks, flies, and other biting insects. Mosquitoes can transmit diseases such as Zika, Malaria, and West Nile virus. Ticks can transmit Lyme disease, Rocky Mountain Spotted Fever, and other diseases.

Does insect repellent prevent malaria? ›

An insect repellent will help protect you from mosquitoes that spread malaria and other diseases, such as dengue, chikungunya, and Yellow fever. You can use an insect repellent on your skin and clothes to keep away (repel) insects. Your doctor may also prescribe you a medication to prevent malaria (antimalarial drug).

Does insect repellent work? ›

Topical insect repellents are safe and effective

If applied as recommended – a thin and even coat over all exposed areas of skin – insect repellents can prevent mosquito bites. How long bite protection lasts varies with the strength of the formulation but research has shown it can last for many hours.

How does mosquito repellent work? ›

How does mosquito repellent work? Female mosquitoes feed on human blood to get the protein needed to make eggs. They detect carbon dioxide and the 'smell' of our skin when searching for their next blood feed. Repellents work to mask these triggers, making mosquitoes look elsewhere for a feed.

What are the 3 ways to prevent mosquitoes? ›

Maintain fly screens on windows, doors, vents and chimneys. Use insect surface sprays both inside and outside the house to kill mosquitoes. Use an effective mosquito repellent, containing either picaridin or diethyltoulamide (DEET) on all exposed skin. Remove stagnant water around the house so mosquitoes cannot breed.

What is the best insect repellent for mosquitoes? ›

Overall, chemical repellents like DEET and picaridin offer long-lasting and wide-ranging protection, repelling mosquitoes, ticks and many fly species. Synthesized plant oils, like lemon eucalyptus oil and IR3535, don't protect quite as long and are effective against mosquitoes and some tick species.

How many people have died from malaria? ›

One estimate, which has been published in a 2002 Nature article, claims that malaria may have killed 50-60 billion people throughout history, or about half of all humans that have ever lived.

What is the best defense against malaria? ›

If out-of-doors, wear a long-sleeved shirt, long pants, and a hat. Apply insect repellent to exposed skin only; do not use under clothing. If you will not be staying in well-screened or air-conditioned rooms, take additional precautions, such as sleeping under an insecticide-treated bed net (mosquito netting).

Why do mosquitoes hate off spray? ›

DEET is effective in repelling mosquitoes, ticks, fleas and many other biting insects. How does DEET work? DEET works to confuse and interfere with the receptors on a mosquito's antennae, which deters mosquitoes from landing on the skin and biting.

How do you prevent malaria mosquitoes? ›

Anopheles mosquitoes can be distinguished from other mosquitoes by the palps, which are as long as the proboscis, and by the presence of discrete blocks of black and white scales on the wings.

How can we prevent mosquito bites to prevent malaria? ›

Use mosquito nets correctly

Mosquito nets can be hung above a bed or crib to protect against mosquito bites. Adults and children should sleep under a mosquito net if air conditioned and screened rooms are not available.

What insect repellents against mosquito? ›

Studies with products containing a mixture of plant oils (citronella, cajuput, lavender, safrole-free sassafras, peppermint, calendula, soy and tea tree oils) have shown them to be modestly effective, repelling mosquitoes for about two hours.

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