Coronavirus: AstraZeneca boss confident Covid-19 vaccine can succeed

But being protected from being sick would already be a big plus.” Nevertheless he admitted that AstraZeneca and Oxford University are in a race against time as the coronavirus seems to be fading rapidly in the UK. He added: “I don’t think there will be too many vaccines because when the disease disappears it will be hard to demonstrate efficacy.” Adrian Hill, director of Oxford’s Jenner Institute, said that an upcoming trial, involving 10,000 volunteers threatened to return “no result” due to low transmission of COVID-19 in the community. Early next month, Oxford will release the crucial results of a first trial of more than 1,000 UK volunteers conducted in April, when the disease was at its peak.