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Ebola vaccine proves effective

woman putting ebola vaccine into canister

COLD STORAGE An Ebola vaccine tested in West Africa is stored at –80° C in a canister that researchers can take out into the field. More than 5,000 people in Guinea received the vaccine in a trial to gauge its efficacy.

S. Hawkey/WHO

By Meghan Rosen

- More than 2 years ago

An experimental Ebola vaccine has triumphed in West Africa.

Of 5,837 people in Guinea and Sierra Leone who received a single shot of the vaccine, rVSV-ZEBOV, none became infected with the virus 10 to 84 days after vaccination.