Nigeria is declared "Ebola-Free": Here's what Nigeria did right

A school official takes a pupil’s temperature using an infrared digital laser thermometer in front of the school premises, at the resumption of private schools, in Lagos, Sept. 22, 2014.

The World Health Organization declared Nigeria free of Ebola on Monday, a containment victory in an outbreak that has stymied other countries’ response efforts.

The milestone came at about 11 a.m. local time, or 6 a.m., E.T. The outbreak has killed more than 4,500 in West Africa is remains unchecked in Liberia, Sierra Leone and Guinea, so Nigeria is by no means immune to another outbreak.

Read more: Nigeria Is Ebola-Free: Here’s What They Did Right | TIME.

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