Recently Africa has seen the resurgence of Ebola virus in the largest outbreak hitherto recorded in the current history. This outbreak scared people worldwide and required the intervention of the World Health Organization, governments of several countries, medical and research institutions and non-governmental organizations such as Doctors Without Borders. In Brazil, the number of dengue cases in 2015 was the largest ever recorded (1,649,008 probable cases1) and the increasing number of people infected with Chikungunya and Zika viruses shows that the country is not prepared to deal with the proliferation of the mosquito Aedes aegypti, the main vector of Dengue, Chikungunya, and Zika viruses. Additionally, big events like the Olympic Games (that will be held in Brazil in 2016) can facilitate the international spread of these viral diseases.
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