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Dengue Fever

10 questions · Health & Medicine

Dengue fever is the most common mosquito-borne viral disease in the world and keeps spreading: helped by travel, growing cities and climate change, which opens new habitats for the mosquitoes that carry it. The illness is caused by the dengue virus, closely related to the yellow fever and Zika viruses. It is spread mainly by the day-active mosquito Aedes aegypti. Typical are suddenly rising high fever, severe headache and violent limb and bone pain: which earned the disease the drastic byname „breakbone fever“. Dengue usually clears up after a few days, but there are four different virus types. Anyone infected a second time with a different type has a raised risk of a severe, sometimes life-threatening course with internal bleeding. There is no specific drug; only the symptoms are treated. The best protection is avoiding mosquito bites and fighting breeding sites such as standing water. There are now vaccines, but their use must be weighed carefully. Every year many millions of people fall ill, above all in Asia and Latin America.

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5 of 10 questions with answers

Which kind of pathogen causes dengue fever?

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A virus

It is related to the yellow fever virus.

💡 Did you know? There are four different dengue types.

Which insect transmits dengue fever?

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The Aedes mosquito

The same mosquito also carries yellow fever and Zika.

💡 Did you know? It is active mainly during the day.

Which drastic byname does dengue fever carry?

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Breakbone fever

The reason is the violent limb and bone pain.

💡 Did you know? The pain can be extremely severe.

How many different dengue virus types are there?

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Four

One infection only protects against one type.

💡 Did you know? That is why one can fall ill several times.

Why is a second dengue infection feared?

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It can be more severe

Internal bleeding can then threaten.

💡 Did you know? This is called severe dengue.

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