Mixing and matching first and second Covid vaccines may work better, according to a study that questions Britain’s original jabbing strategy.
All 46million fully-inoculated adults have so far received the same vaccine, made by either AstraZeneca, Pfizer or Moderna. But new research suggests giving a different jab for a second dose triggers an even stronger immune response.
A first dose of AstraZeneca followed by Moderna or Novavax offered higher levels of antibodies and T-cells than two of the Oxford-made injections.