World’s first and only Dengue vaccine, Dengvaxia, has now been approved in 14 countries. The vaccine is prepared by Sanofi-Pasteur, part of French pharmaceutical organisation Sanofi. It has been approved after testing in countries like Philippines, Mexico, Brazil, Thailand, Singapore, Indonesia, Paraguay, Costa Rica, El Salvador, Peru and Guatemala. Dengue is endemic to all of these countries.
Dengue causes a large number of deaths each year. WHO (World Health Organisation) wants to cut down Dengue mortality rate by 50% by 2020. Dengvaxia has been shown to prevent two thirds of dengue occurrences which includes all 4 serotypes of the disease. It is also shown to prevent 8 cases of hospitalisations out of every 10 cases and 93% of hemorrhagic dengue.