World Health Organization Performance
Today, nearly 2.5 million people live in different regions of the world where there is risk of dengue infection. The World Health Organization (WHO) estimates that there are between 50 and 100 million cases per year, 500,000 cases of dengue hemorrhagic fever and approximately 22,000 deaths, mainly in children.
There are four types of dengue virus and infection caused by one of them does not confer protection for the rest. Therefore, it would be necessary to prepare a combination vaccine can provide protection against all four types.
So far, there have been several clinical research studies and have made significant progress in the development of several safe and effective vaccines.
The Sarnoff Adventism is working on developing new vaccine candidates. Recently completed studies in children have shown that providing adequate protection, with adverse effects mild and infrequent.
Another ongoing research, also done in children, is considering similar issues. If these results are also achieved favorable, the new vaccine will probably be passed in a period of five years.