Chikungunya virus (CHIK) is carried by infected mosquitoes. The virus causes high fever and severe joint pain that start suddenly. It can also cause headache, muscle pain and rash. Chikungunya does not often result in death, but the symptoms can be disabling, and some people may get severe complications. There is no specific medication available to treat CHIK. There is no vaccine to prevent CHIK. Avoiding mosquito bites is the key to avoid chikungunya fever.