The chief researcher who is developing a possible vaccine for “Covid-19” at Oxford University said it could be released by the end of the year, but this is not certain.

Data on Monday showed that the experimental vaccine that AstraZeneca acquired by the pharmaceutical company developed an immune response in the clinical trials of the early stages, to keep hopes that it could be used by the end of the year.

“With regard to the goal of launching the vaccine by the end of the year, this is possible, but there is absolutely no certainty that this is because we need three things to happen,” researcher Sarah Gilbert told BBC Radio.

She made it clear that his success in the trials of the last stages should be confirmed, and that large quantities should be provided, and the regulatory authorities must quickly agree to his license for emergency use.

“All three of these things must happen before we can start vaccinating large numbers of people,” she added.