Prof Gilbert says work is under way to tweak the Oxford vaccine for the South African Covid variant.
Prof Gilbert says work is under way to tweak the Oxford vaccine for the South African Covid variant.
The Oxford-AstraZeneca vaccine might offer less protection against the South African strain of Covid-19.
A small study..
Residents in a part of Surrey are to be urgently tested for Covid-19 after it emerged the South African strain of the virus may..