Oxford’s 90% vaccine finding was ‘only in younger age groups’

A US official has said the dose of AstraZeneca and Oxford University’s Covid-19 vaccine that was shown to be 90% effective was only tested in people aged 55 and under (John Cairns/University of Oxford/PA)
A US official has said the dose of AstraZeneca and Oxford University’s Covid-19 vaccine that was shown to be 90% effective was only tested in people aged 55 and under (John Cairns/University of Oxford/PA)