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ximena flamenco on 22 Oct 14Epidemics result from person-to-person contact within communities, families, and hospitals, or from inadvertent laboratory exposures. The means of infection and the natural ecology of these viruses are largely unknown, although an association with monkeys and/or bats has been suggested. Read more: Rare and Deadly Diseases: Ebola: Africa's Bloody Disease | Infoplease.com http://www.infoplease.com/cig/dangerous-diseases-epidemics/ebola-africa-bloody-disease.html#ixzz3GtytSv7g