about dengue

Dengue is a febrile illness caused by a virus (DENV) that is transmitted through the bite of infected mosquitoes (Aedes aegypti or Aedes albopictus).

 
 
 

Highly variable symptoms

The infection can present a wide range of clinical manifestations, from asymptomatic, mild febrile illness “break-bone fever,” to a potentially deadly syndrome. Numerous factors, including those related to the virus, the host, and the vector, affect the severity of the disease.

DENGUE SEROTYPES

There are four serotypes of dengue, their distribution is essential to understand the epidemic cycles of the disease.

DENV-1

Dengue serotype 1 (DENV-1) often causes large outbreaks in urban areas.

DENV-2

Dengue serotype 2 (DENV-2) is associated with more severe forms of dengue fever, including dengue hemorrhagic fever.

DENV-3

Dengue serotype 3 (DENV-3) has been emerging rapidly in new regions, contributing to the global spread of dengue.

DENV-4

Dengue serotype 4 (DENV-4) tends to be less prevalent but can still cause significant outbreaks and severe illness.

Understanding the unique characteristics and distribution of each of the four dengue serotypes is crucial for effective disease management and prevention strategies.

With the global incidence of dengue growing dramatically in recent decades, awareness and preventive measures have become key components in combating this public health challenge.