The Oxford second generation vaccine is being developed to handle several strains of the mutating virus at the same time. The Oxford team developing the vaccine is following what the vaccine is doing, in the way it is mutating, to develop the new vaccine.
The Oxford vaccine uses a virus that has been modified to contain a piece of genetic code from the coronavirus. When injected it causes human cells to produce the coronavirus spike protein, which the immune system learns to recognize. A single vaccine would contain different lines of benign virus, each containing the genetic code for the spike protein of a different variant so that the immune system can recognize several mutated coronavirus strains at the same time. This is also how the flu vaccine works.
Quick regulatory approval is expected with much smaller trials that would be followed by immunization shots given in September 2021 when winter arrives.
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