Nigeria has been declared officially free of Ebola after six weeks with no new cases, the World Health Organization (WHO) says.
The WHO can declare an Ebola outbreak over if two incubation periods of 21 days pass with no new cases. The last reported case in Nigeria - Africa's most populous country - was discovered on 5 September.
The BBC's Will Ross in Lagos says the nightmare scenario of Ebola spreading through Nigeria's 170 million people has been avoided and the nation is heaving a collective sigh of relief.
The outbreak there began when Patrick Sawyer, an American-Liberian citizen, was diagnosed with the illness in July.
BBC News
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