New research suggests people of all ages who have had two jabs of the Pfizer-BioNTech coronavirus vaccine produce high numbers of antibodies.
The Imperial College London and Ipsos Mori study, React-2, said data shows that 87.9% of people over the age of 80 tested positive for antibodies after two doses.
That figure rose to 95.5% for those under 60 and 100% in those aged under 30.
However, researchers warned there was not enough data to say how protected someone may be from the virus based on a positive antibody test result, and it did not mean they were immune.
Report by Avagninag.
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