The University of Oxford is expected to release data on the effectiveness of its coronavirus vaccine in the coming weeks, with the latest trial results suggesting it produces a strong immune response in older adults.
The ChAdOx1 nCov-2019 vaccine has been shown to trigger a robust immune response in healthy adults aged 56-69 and people over 70.
Phase two data, published in The Lancet, suggests one of the groups most vulnerable to serious illness and death from Covid-19 could build immunity, researchers say.
According to the researchers, volunteers in the trial demonstrated similar immune responses across all three age groups (18-55, 56-69, and 70 and over).