What is QDENGA® and How does it Work?
QDENGA® is a groundbreaking vaccine developed to protect against dengue fever, a potentially serious mosquito-borne illness caused by the dengue virus. Unlike other vaccines, QDENGA® is designed to protect against all four strains of the dengue virus (DEN-1, DEN-2, DEN-3, and DEN-4), offering broad-spectrum protection for people living in or travelling to areas where dengue is common.
QDENGA® is a live-attenuated vaccine, which contains a weakened version of the virus that stimulates the immune system without causing the disease. When administered, the vaccine helps the body develop immunity against all four strains of the dengue virus. This immune response can significantly reduce the risk of severe illness and hospitalisation in case of infection.
Why Choose QDENGA®?
- Broad Protection: QDENGA® is the first dengue vaccine that protects against all four dengue virus serotypes.
- Proven Safety and Efficacy: Clinical trials have demonstrated the vaccine’s effectiveness in preventing dengue fever and reducing the severity of the disease.




