Explanation:

After its entry into patient’s body, the virus multiplies to reach sufficient numbers to cause the symptoms. This process might take 4-6 days after which the symptoms become visible. The main symptoms of dengue are high fever (103-105 degrees Fahrenheit), severe headache (mostly in the forehead), severe pain behind the eyes, joint pain, muscle and bone pain, rashes, and mild bleeding from nose or gums.  Because of the severe joint pain, dengue is also known as break-bone fever.  Typically, younger children and those with their first dengue infection have a milder illness than older children and adults.