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Obama stressed that Ebola «is spreading out of control.»

US President Barack Obama called on the world Tuesday to «act fast» to stop the Ebola epidemic in West Africa before «hundreds of miles» are infected.

The epidemic began in Guinea from where it spread to the neighboring nations of Liberia and Sierra Leone. So far, the disease has killed 2,461 people this year, half as many, the World Health Organization reported.

During a visit on Tuesday to the headquarters of the Centers for Disease Control and Prevention (CDC, for its acronym in English) in Atlanta, Obama urged a comprehensive effort to fight the virus, while giving to know that his country received 3,000 military personnel in West Africa.

Military personnel are expected to help build new facilities and train health workers in the area, where «the disease is spreading out of control.»