The worst outbreak of Ebola in history has touched Africa's biggest city, with a hospital in Lagos confirming the death of a visiting Liberian government official.

Patrick Sawyer, a consultant at the Liberian Finance Ministry, flew into Lagos earlier this week, then checked into a Lagos hospital with a fever, according to Nigeria's Health Minister Onyebuchi Chukwu. Laboratory blood tests confirmed Ebola shortly before Mr. Sawyer died on Friday.

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