The head of the World Health Organization has told the presidents of West African nations stricken by Ebola that the outbreak is moving faster than efforts to control it.
WHO: Ebola Spread Outpaces Control Effort

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An employee of the Monrovia City Corporation sprays disinfectant along the streets to prevent the spread of the deadly Ebola virus, Monrovia, Liberia, August 1, 2014.

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An employee of the Monrovia City Corporation mixes disinfectant before spraying it on the streets to prevent the spread of the deadly Ebola virus, Monrovia, Liberia, August 1, 2014.

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An employee of the Monrovia City Corporation sprays disinfectant inside a government building to prevent the spread of the deadly Ebola virus, Monrovia, Liberia, August 1, 2014.

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Liberian soldiers walk through the streets to prevent panic as fears of the deadly Ebola virus spread in the city of Monrovia, Liberia, August 1, 2014.