Which regions have already had Chikungunya and Dengue fever epidemics?
In the tropical and sub-tropical bands of the earth (Southeast Asia, Indian Subcontinent, Africa, Latin America, etc.) there are Chikungunya and Dengue fever epidemics every year with millions of people infected. Dengue epidemics result in thousands of fatalities annually and among them are notably small children. In 2007, Europe had its first outbreak of Chikungunya in Italy with over 200 people infected.
