Dengue

Dengue is a rapidly spreading mosquito-borne viral disease that affects millions globally, particularly in tropical and subtropical regions. With a surge in dengue outbreaks in India and other parts of the world, understanding this disease has become critical for both medical professionals and the general public. This academic article delves into what is dengue, its causes, symptoms, treatment, prevention strategies, and ongoing research, using the latest scientific insights and epidemiological data.

What is Dengue?

Dengue, also referred to as dengue fever, is caused by the dengue virus, which belongs to the Flaviviridae family. There are four serotypes: DEN-1, DEN-2, DEN-3, and DEN-4. A person infected with one serotype can become immune to that type but may still be vulnerable to the others, increasing the risk of severe dengue upon reinfection.

How is Dengue Transmitted?

Dengue is primarily transmitted through the bite of an infected Aedes aegypti mosquito, which is active during the daytime. This dengue mosquito breeds in stagnant water and is easily identifiable by its black and white stripes. Dengue transmission cycle involves the mosquito acquiring the virus from an infected human and then spreading it to another person through a bite.

The dengue mosquito bite time is typically early morning and late afternoon. Hence, public health initiatives often focus on eliminating breeding sites and spreading awareness about dengue mosquito identification.

Dengue Symptoms

The onset of dengue is sudden and marked by early signs of dengue such as:

• High fever
• Severe headache
• Pain behind the eyes
• Joint and muscle pain (often called "breakbone fever")
• Skin rashes (dengue rash)
• Mild bleeding (nose or gums)

Dengue symptoms in adults and children may vary, with children sometimes showing milder signs. In severe dengue symptoms, individuals may experience internal bleeding, rapid drop in blood pressure, and organ impairment, requiring immediate hospitalization.