Researchers careful to state that the long-term outcome/efficacy of the immune response to the Oxford vaccine will be known after the Phase 3 arm of the trial. Great science but verification required.

Medical Mythbusting Commentary for July 21, 2020

Coronavirus: Oxford vaccine triggers immune response


Safety and immunogenicity of the ChAdOx1 nCoV-19
vaccine against SARS-CoV-2: a preliminary report of
a phase 1/2, single-blind, randomised controlled trial