AstraZeneca-Oxford jab tested only on those below 55 yearsWorld | 26 Nov 2020 11:28 pm
It has emerged that the dose of AstraZeneca and Oxford University's vaccine that was shown to be 90 percent effective was only tested in people aged 55 and under, Sky News.
That's the claim made by Moncef Slaoui, the scientific head of the US's Operation Warp Speed, which is the programme to supply America with vaccines.
He told US reporters that the half-dose regime, which was discovered by accident, was only given to younger age groups.
Scientists across the globe are hoping to find vaccines that work in older people, who are most at risk from coronavirus.
Oxford's overall efficacy from two different dosing regimes in a phase three trial was announced last week at a combined figure of 70 percent.
A half dose followed by a full dose was found to be 90 percent effective according to a subset of data, but efficacy was 62 percent for people given two full doses.