>I was under the impression that any mutations to the spike proteins would make the current vaccines useless and would require changes to the vaccines just like the flu shot . Isn't this the case ?
No, it is not the case.
You don't just make one antibody that targets the entire spike that would be thrown off by a mutation.
>Human Antibodies Target Many Parts of Coronavirus Spike Protein
So far, all the claims that a variant (London variant, South African variant, Indian variant) would be immune to the current vaccine have turned out to be unwarranted.
No, it is not the case.
You don't just make one antibody that targets the entire spike that would be thrown off by a mutation.
>Human Antibodies Target Many Parts of Coronavirus Spike Protein
https://directorsblog.nih.gov/2021/05/18/human-antibodies-ta...
So far, all the claims that a variant (London variant, South African variant, Indian variant) would be immune to the current vaccine have turned out to be unwarranted.