This footage shows Ebola vaccination trials being carried out in Guinea.
The vaccine has proved to give 100% protection and researchers said it could now be used to help end an outbreak of the deadly disease which has killed more than 11,000 people in West Africa.
The footage, from Médecins Sans Frontières, shows the assessment of a volunteer for the trial and the vaccine being administered to two people in Conakry.
The world is one step closer to eradicating Ebola, the World Health Organization said.
WHO Director-General Margaret Chan said the results of a trial, which showed 100% effectiveness, was an "extremely promising development".
She added: "This is going to be a game changer.
"It will change the management of the current Ebola outbreak and future outbreaks."
A new Ebola vaccine which could signal a cure of the deadly disease is as "safe as having a flu jab", an expert says.
Dr Ben Neuman, Lecturer in Virology, University of Reading, said the vaccine was "big news in the ongoing race to shut down Ebola."
But further studies still need to be done as the jab was not given to children or pregnant woman as it is unknown how it would affect them.
"The good news is that in the people tested, the vaccine was about as safe as a flu jab," Dr Neuman said.
A new Ebola vaccine, which has so far proved to be 100% effective, offers protection from the deadly disease within 10 days.
Experts say the jab, which is not yet licensed, could soon be approved for mass use giving hope a cure is on the way.
Ring vaccination, used in the past to eradicate smallpox, could then be implemented to stop the virus spreading further.
An Ebola vaccine has proved to give 100% protection in trials carried out in Guinea.
Researchers said it could now be used to help end an outbreak of the deadly disease which killed more than 11,000 people in West Africa.
Infections expert Jeremy Farrar of the Wellcome Trust, which helped fund the trial, described the results as "remarkable".
He said: "Our hope is that this vaccine will now help bring this epidemic to an end and be available for the inevitable future Ebola epidemics."
A patient admitted to hospital in Liverpool with suspected Ebola has tested negative for the deadly disease.
In a statement issued yesterday, Public Health England said the patient was undergoing a series of tests - one of which was for Ebola.
But in a follow up statement today it confirmed there was no sign of the virus, which has now killed more than 11,000 people in West Africa.
A patient has been admitted to the Royal Liverpool University Hospital to undergo Ebola testing, Publich Health England have confirmed.
Public Health England can confirm a patient has been admitted to Royal Liverpool University Hospital and is currently undergoing a series of tests – one of which is for Ebola. Ebola is considered very unlikely but testing will take place as a precaution, as is our usual practice in these circumstances.
Between August last year and early June, 240 individuals with relevant symptoms and a travel history were tested for Ebola in the UK. The risk of Ebola to the general public in the UK remains very low. Ebola can only be transmitted by direct contact with the blood or bodily fluids of an infected person. We have well established and practiced infection control procedures for dealing with cases of imported infectious disease, and our systems have demonstrated that the UK is able to manage a case of Ebola if identified.
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Ebola has been eradicated in Liberia, according to the World Health Organisation.
The West African nation has now gone 42 days without a new case - twice as long as its incubation period. More than 4,700 people died from the deadly virus over the last year.
Tolbert Nyswah, Liberia's deputy health minister, said that the news was "worth celebrating", but that vigilance was still needed while neighbouring countries Guinea and Sierra Leone still suffer.
A total of 11,005 people have died from Ebola in the three West African neighbours since the outbreak began in December 2013, according to the WHO.
Liberia was recording hundreds of new cases a week at the peak of the outbreak between August and October, causing international alarm.