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Do vaccines for viruses need to be updated when variants arise? We get a new flu vaccine every year because it's a different strain of the flu. Is that true with all viruses?
Some people are trying to develop a universal influenza vaccine, to try to target the antibody generation toward a part of the molecule that cannot change without making the molecule not work anymore.

With the coronavirus, we're not that sophisticated. But I think the evidence is that the variants are not escaping the vaccine dramatically. Still, it's something that people have definitely worried about and it's possible that we might have to update vaccines.

And of course, that also depends how quickly we can get this vaccination round to completehow many different variants are going to emerge by the time most people are vaccinated. But I don't think there's any evidence that it's going to be quite like the flu.

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LoudestWHOOP! said:

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https://now.tufts.edu/articles/how-viruses-mutate-and-create-new-variants

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Do vaccines for viruses need to be updated when variants arise? We get a new flu vaccine every year because it's a different strain of the flu. Is that true with all viruses?
Some people are trying to develop a universal influenza vaccine, to try to target the antibody generation toward a part of the molecule that cannot change without making the molecule not work anymore.

With the coronavirus, we're not that sophisticated. But I think the evidence is that the variants are not escaping the vaccine dramatically. Still, it's something that people have definitely worried about and it's possible that we might have to update vaccines.

And of course, that also depends how quickly we can get this vaccination round to completehow many different variants are going to emerge by the time most people are vaccinated. But I don't think there's any evidence that it's going to be quite like the flu.

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Does this mean that the vaccine can give off the actual virus?

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