Keep dengue Away

The main method to control or prevent the transmission of dengue virus
is to combat vector mosquitoes through:


The mosquito (type Aedes) is the primary vector of dengue.
These mosquitoes are found in tropical and subtropical regions around the world.

The virus is transmitted to humans through the bites of infected female mosquitoes.

They live in urban habitats and breeds mostly in man-made containers.

After virus incubation an infected mosquito is capable of transmitting the virus for the rest of its life.

Patients who are already infected can transmit the infection via Aedes mosquitoes after their first symptoms appear.

Dengue can be caused by 4 different dengue viruses.

So a person can be infected several times.

  1. Uninfected mosquito
  2. Mosquito feeds on human infected with dengue virus
  3. Extrinsic incubation peridod, 8-10 days
  4. Infected mosquito feeds on uninfected human

Anyone can be infected with the dengue virus

Dengue is difficult to recognize

Dengue is difficult to recognize because the early symptoms of fever, headache, body aches are not specific.
Dengue may be misdiagnosed as other illnesses : influenza, typhoid, zika, malaria …

75% of dengue infections
are asymptomatic

20% are mild – moderate
dengue fever

5% are severe dengue : 500.000 people with severe dengue require hospitalization each year and 2.5% of people will die


Warning signs of progression to severe dengue

(between 3 and 7 days after first symptoms)
Difficult breathing, mucosal bleeding, severe abdominal pain, persistent vomiting…
There is no specific treatment for dengue / severe dengue, but early detection and access to proper medical care lowers fatality rates below 1%.

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