Pfizer coronavirus jab is 'safe and effective' against South African mutation
The Pfizer coronavirus vaccine is "safe and effective" against the South African variant, a spokesman for Prime Minister Boris Johnson has said.
It comes after a study into the jab's effectiveness at Tel Aviv University in Israel found the mutation may "break through".
The study compared almost 400 people who had tested positive for Covid, 14 days or more after they received one or two doses of the vaccine, against the same number of unvaccinated patients with the disease.
The Pfizer vaccine appeared to be less effective against the South African variant, researchers said, and has the ability to 'evade' protection.