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New Ebola vaccine has '100 percent' effectiveness in early results

The Ebola vaccine from a trial in Guinea needs to be kept at a temperature of minus 60 degrees Celsius, the World Health Organization says. Storage devices use jet fuel to keep the right temperature for up to five days in the field. 

Researchers say the VSV-EBOV vaccine is both effective and quick, with no new Ebola cases 6 days after vaccination.