Dengue fever is caused by virus that is transmitted when a specific type of mosquito bites humans. Four related types of dengue viruses (Denv-1, 2, 3 and 4) can cause dengue fever. The mosquito named Aedes aegypti is responsible in the spread of the disease. Dengue is common in areas/ countries where there is high population of mosquitoes, especially, Aedes aegypti type mosquito. Avoiding mosquito bite is best possible way to prevent dengue infection.
Types of Dengue
fever Mostly dengue infection (about 85%) causes mild flu like illness with fever that gets better itself in two weeks’ time with no later complications. Some patients develop a severe form known as dengue hemorrhagic fever (DHF). DHF can be life-threatening if not diagnosed and treated properly.
Signs and Symptoms
Symptoms develop in 4-10 days from the day dengue virus enters the body
Common symptoms include:
Sudden high fever reaching to 104-105 F
Severe headache – pain behind eyes
Bone, muscle pain or joint pain
Nausea and vomiting
Mild bleeding (from nose or gums)
Some patients also experience skin rash and increased sensitivity of skin
Symptoms last for 7-14 days and patients starts to feel better.
Some patients develop dengue hemorrhagic fever (DHF)