As UK lists Covid-19 Delta AY.2.4 as Variant Under Investigation, how are vaccine companies preparing for escape mutations?

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So far, the first generation of Covid-19 vaccines that have been released by the three companies are holding up strong against the known variants of the virus Coronavirus variants: Since the coronavirus vaccines began rolling out, there has been discussion around mutations and strains that might be able to escape from the vaccine-generated immune response. … Read more