Four Distinct Dengue Virus Serotypes
Dengue is caused by four different serotypes of the virus, increasing the risk of severe illness and making vaccine development challenging.
Aedes Mosquitoes: The Vectors of Dengue
The Aedes mosquito species, particularly Aedes aegypti and Aedes albopictus, are the primary carriers of the Dengue virus, spreading the disease to humans through their bites.
Dengue Outbreaks Are on the Rise
In recent years, Dengue outbreaks have been increasing in frequency and intensity, posing a significant global health concern.
Asymptomatic Cases Are Common
Many Dengue infections are asymptomatic, with individuals showing no noticeable symptoms, making disease surveillance and control more challenging.
Dengue Fever and Dengue Hemorrhagic Fever
Dengue can manifest in two main forms: Dengue Fever, which is generally milder, and Dengue Hemorrhagic Fever, a more severe and potentially fatal condition.
No Specific Treatment for Dengue
Currently, there is no specific antiviral treatment for Dengue, with management primarily focused on supportive care to alleviate symptoms and prevent complications.
Secondary Infections Can Be More Severe
People who have had a previous Dengue infection are at a higher risk of severe complications if they contract a different Dengue serotype in the future.
Dengue Vaccine Development Challenges
Developing an effective Dengue vaccine has been challenging due to the complexities of addressing all four virus serotypes simultaneously.
Global Impact of Dengue
Dengue is endemic in over 100 countries, affecting millions of people each year, and posing a substantial economic burden on healthcare systems.
Climate Change and Dengue Spread
Climate change plays a role in the expansion of Dengue, as warmer temperatures and changing rainfall patterns create more favorable conditions for mosquito breeding.
Dengue's Affect on Pregnant Women
Pregnant women infected with Dengue are at an increased risk of severe complications, including miscarriage and preterm birth.