Dengue Fever Fact

Dengue fever fact was first recorded between 1779 and 1780 simultaneously in Asia, Africa and North America, reflecting at least 200 years old worldwide distribution occupied. According to latest studies are dengue Virus originated in Africa, where the word "dengue" "Bone Crusher" means and refers to the arising strong limb pain. Today, over 2.5 billion people in risk areas of the tropics and subtropics. The WHO estimated 50-100 million illnesses annually, of which 250, 500,000, the heavier course-form, dengue haemorrhagic fever (DHF), make up. Although the 4 serotypes worldwide have spread rapidly to dominate in certain regions or certain subtypes of the Mixtures.