The University of Oxford’s possible COVID-19 vaccine could be rolled out by the end of the year but there is no certainty, the lead developer of the vaccine said on Tuesday.
The experimental vaccine, which has been licensed to AstraZeneca (AZN.L), produced an immune response in early-stage clinical trials, data showed on Monday, preserving hopes it could be in use by the end of 2020, said Reuters.
The Oxford scientists had eyed a million doses of the potential vaccine to be produced by September.
Although the deal with AstraZeneca has provided manufacturing capacity to do that, the lower prevalence of the novel coronavirus in Britain has complicated the process of proving its efficacy.
Late-stage trials crucial for providing data are under way in Brazil and South Africa and are due to start in the United States also.
There are no approved vaccines yet for COVID-19, but the World Health Organization has said AstraZeneca’s shot is one of the leading candidates.