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Dengue Fever



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Epidemiology of Dengue

Slide 7

May 2012

There are 2.5 billion people at risk of dengue due to living in an endemic area, in addition to the actual living conditions. There are an estimated 50–100 million infections per year, and 500,000 hospitalizations due to severe disease.

The case fatality rate from severe dengue approaches 5%, however the risk of fatal disease is <1% with appropriate therapy.

There is a seasonal component to dengue. Peak frequency depends on where you are in the world; generally speaking, warm and wet conditions favor development of mosquitoes. This will vary between countries, and it is essential to remember in certain areas, the risk of dengue exists year-round.

Finally, there are worldwide outbreaks every 20–40 years.

Epidemiology of Dengue
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