Prevention of dengue fever

At present, there is no dengue vaccine. The best method of prevention is to avoid being bitten by mosquitoes. Anyone who lives in or travel to an area where dengue fever exists, there a number of ways to avoid being bitten.


The chances of being bitten are significantly reduced if as little skin as possible is exposed. When in an area with mosquitoes, wear long pants, long sleeved shirts, and socks. For further protection, tuck pant legs into shoes or socks and wear a hat.

Mosquito repellents

The best way to avoid dengue is to avoid being bitten.

Use a repellent with at least 10 percent concentration of DEET (diethyltoluamide), a higher concentration is necessary for longer lengths of exposure. Avoid using DEET on young children. Mosquito traps and nets.

Studies have shown that the risk of being bitten by mosquitoes is reduced if by using a mosquito net while sleeping. Untreated nets are less effective because the mosquito can bite through the net if the person is standing next to it.

Nets that have been treated with insecticide are much more protective.

Not only does the insecticide kill the mosquito and other insects, it is also a repellent - therefore fewer mosquitoes are likely to enter the room.


Avoid wearing heavily scented soaps and perfumes as these are known to attract mosquitos.


Use structural barriers, such as window screens or netting.

Stagnant water

The Aedes mosquito prefers to breed in clean, stagnant water. It is important to frequently check and remove stagnant water in your home/premises. Here are some tips for this:

  1. Turn buckets and watering cans over; store them under shelter so water cannot accumulate in them.
  2. Remove the water from plant pot plates. To remove mosquito eggs, clean and scrub them thoroughly.
  3. Loosen soil from potted plants. This will prevent puddles from developing on the surface of hard soil.
  4. Make sure scupper drains are not blocked; do not place potted plants and other objects over the scupper drains.
  5. Gully traps that are rarely used should be covered; replace gully traps with non-perforated ones, and install anti-mosquito valves.
  6. Do not place receptacles under or on top of any air-conditioning unit.
  7. Flower vases - change the water every other day and scrub the inside of the vase thoroughly and rinse it out.
  8. Leaves - make sure leaves are not blocking anything that may result in the accumulation of puddles or stagnant water.