What is dengue?

Dengue is a viral infection transmitted by female mosquitoes and is common in warm, tropical climates. The symptoms range from extremely mild to severe flu-like symptoms, along with muscle and joint pain, nausea and vomiting.

In some cases, people develop severe dengue, which can lead to complications associated with severe bleeding and organ impairment. Severe dengue can occasionally be fatal.

There is no treatment for the infection itself, but the symptoms can be managed.

What is Chikungunya?

Chikungunya is a viral disease transmitted by infected mosquitoes. It causes fever and severe, debilitating joint pain. Infection may also cause muscle pain, headaches, nausea, fatigue and rashes.

There is no current cure for Chikungunya. Treatment is focused on relieving the symptoms using anti-fever and pain medication.

The disease mostly occurs in Africa, Asia and India.


100+ countries are endemic for dengue 104 million cases were estimated globally in 2017*


60+ countries are endemic for Chikungunya 8 million cases were reported globally between 2004 and 2017*


Further information



Source: WHO data 2018