A coronavirus vaccine developed by the University of Oxford appears safe and triggers an immune response.
Trials involving 1,077 people showed the injection led to them making antibodies and T-cells that can fight coronavirus.
Professor Sarah Gilbert, co-author of the Oxford University study, described the findings as promising but said there “is still much work to be done before we can confirm if our vaccine will help manage the Covid-19 pandemic”.
The vaccine – called ChAdOx1 nCoV-19 – is being developed at unprecedented speed. It is made from a genetically engineered virus that causes the common cold in chimpanzees.