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Ebola Drug Used on Two Americans Works in Monkey Study

Monkeys infected with Ebola survived after being treated with an experimental drug from Mapp Biopharmaceutical Inc., in a study that suggests the drug may be effective even after severe symptoms are present.

Monkeys were given three doses of the antibody-based treatment ZMapp starting three to five days after being infected with a lethal dose of Ebola. All 18 monkeys treated with ZMapp survived, while three that weren’t given the medicine died, according to the results published in the journal Nature.