William Pooley, the British nurse who successfully recovered from the Ebola virus, has returned to work in West Africa.
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Subsequent patients, including Spanish nurse Teresa Romero, have been treated with blood from Ebola survivors. It is believed that they may have some immunity to the virus.
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More than 4,500 people have died from Ebola, mainly in Guinea, Liberia and Sierra Leone. -bbc
How Ebola survivors’ Blood is Saving Lives by times-of-pakistan