Liberia declared Ebola-free, ending West African outbreak

Liberia has been declared Ebola-free by the World Health Organization (WHO), effectively putting an end to the world's worst outbreak of the disease, the BBC has reported.

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The "end of active transmission" was declared, after 42 days without a new case in Liberia, the BBC reports.

It joins Guinea and Sierra Leone, which earned the status last year.

However, the WHO warned that West Africa may see flare-ups of the virus. It has killed more than 11,000 people since December 2013.

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