Lead scientist for Oxford-AstraZeneca COVID-19 vaccine says one-dose strategy is working in U.K.
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STEPHANE MAHE/Reuters
The scientist who led the development of the Oxford-AstraZeneca vaccine says Britain was right to extend the interval between doses because the vaccine has been working so well.
Britain was among the first countries to approve a 12-week interval between jabs, instead of the recommended four-week interval, in order to make better use of limited supplies and immunize as many people as possible. Several other governments have followed suit.