Dr.Piot explained: it was not until 2014 that the Ebola virus spread to Western African areas. It had been contained to Central Africa, and the patients had been found only in limited areas in Africa. However, since then, it hit countries that had just recovered from damaged economies due to decade-long civil wars. He further added that as global economies are intertwined with each other, and also as advanced public transportation makes it easier for people to travel across borders, "nothing remains local these days."
(source: THE JAPAN TIMES, March 30, 2016)
http://www.japantimes.co.jp/news/2016/03/30/general/high-mortality-infectious-diseases-require-global-focus-2/#.VxRBiXxf3IU
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