The world health organization (WHO) has estimated that 50-100
million of dengue virus infections occur annually while a recent study
calculated that the true figure may be closer to 400 million.
Dengue is endemic
throughout the tropics and it has been confirmed in 128 countries worldwide.
The geographic extension of dengue is essentially determined by the
distribution of its primary vector, the mosquito Aedes aegypti (L.) (Diptera,
Culicidae). This species is commonly found in high numbers in urban areas,
living close to human dwellings, where females usually breed in man-made
containers. Read more>>>>>
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