Covid: Oxford trial to test efficacy of mix of vaccines for individuals
by Sarah Boseley Health editor from on (#5DQGH)
Scientists aim to establish level of immunity in trial of 820 people, giving some a substitute vaccine at second appointment
Volunteers are being sought for a world-first trial to establish the efficacy of giving people a first dose of one vaccine and a second dose of a different vaccine.
The trial, which is being run by Oxford University and is funded by the government's vaccine taskforce, has been described by ministers as hugely important".
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