Explanation Text

How Dengue Fever Happens

Dengue fever is a disease caused by dengue virus that is carried by mosquitoes. That virus enters the person’s bloodstream. It causes severe form of dengue fever called dengue hemorrhagic fever, severe bleeding, a sudden drop in blood pressure (shock) and death. The species of the mosquitoes that causes dengue fever is Aedes such as Aedes aegypti and Aedes albopictus. Both of the mosquitoes are known as vector or virus disseminators of dengue fever (DHT). According to the researcher, those mosquitoes can fly farther, active until evening and live in dirty water. Aedes aegypti is the most dangerous mosquito that causes dengue fever because can carry dengue virus after biting a person. Dengue fever is usually found in tropical and subtropical region especially in the damp area.

Dengue fever happens when a mosquito such as Aedes aegypti bits a person. The person that is bitten by a mosquito carries dengue virus will go through the incubation period. This incubation will take three until fifteen days before the symptoms of dengue appear. During five to eight days, dengue starts with several symptoms such as chills, headache, eye pain, red eyes, extreme weakness low backache and severe aches in the legs. Besides, the temperature increases quickly as high as 104 F (40 C) and low blood pressure.  In the initial period of illness last about two or three days, the fever decreases quickly and the patient sweats heavily. After one day feeling better, the temperature of patient increases again and gets a headache. Then, the rashes of small red bumps appear over the body, hand, and feet. The symptoms such as fever, rash and headache are called dengue triad. After going through all of the incubation period, the patient will recover fully from dengue fever, although weakness and tiredness may last for several weeks. That are how dengue fever happens.  
Modified from Google