The United Kingdom began the first vaccine trial, eight weeks after the Ebola emergency

The Oxford Covid vaccine is estimated to have saved six million lives in its first year of worldwide use and hundreds of millions of doses have been administered.

However, the vaccine has been banned in some countries because of the risk of developing blood clots in up to one in 100,000 people.

This vaccine may carry a similar risk, although this is much lower than the Bundibugyo strain of Ebola, which kills about a third of those infected.

Pollock said that serious side effects are “very rare” and that he thought the experiments on healthy people were “very thorough”, and that any risks would be reported to volunteers.

She added: “I want to emphasize that the Covid AstraZeneca vaccine has been given to millions of people.

Three other vaccines are being developed for the Bundibugyo strain of Ebola.

These include one from biotechnology company Moderna using their mRNA vaccine technology. The US-based Global AIDS Vaccine Initiative and Public Health are using a similar method that has proven to work for other strains of Ebola, but is slower to produce.