What is the Dengue Vaccine?
The dengue vaccine, known as Dengvaxia, is primarily designed to protect against dengue fever, a viral infection transmitted by Aedes mosquitoes. The vaccine is suitable for individuals aged 9 to 45 years who have a confirmed previous dengue infection and live in dengue-endemic areas. It's important to have a proper diagnosis of past dengue infection because the vaccine can increase the risk of severe dengue in individuals who have not been previously infected.
How Does It Work?
Dengvaxia is a live attenuated vaccine that targets all four dengue virus serotypes. By simulating an infection, it stimulates the immune system to produce antibodies, providing immunity when exposed to the actual virus in the future. The vaccination schedule typically includes three doses administered six months apart.
Why Is It Important for Travelers?
Travelers visiting dengue-endemic regions are at increased risk of contracting the virus, especially during peak transmission seasons. Vaccination can significantly reduce the chances of severe illness, hospitalizations, and long-term health complications related to dengue fever.
Consultation and Recommendations
It is crucial for travelers and individuals living in endemic areas to consult healthcare providers about vaccination. They will assess individual medical history, previous dengue infections, and current health status to determine the appropriateness of the vaccine.