Is the virus constantly changing when it transfer from human to human or do the significant mutations only occur between animals and humans? If you have had the virus, do the antibodies recognize slightly mutated versions of the same virus?
How do mutations affect the viability of a vaccine, will the vaccine need to be changed over time?
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Is the virus constantly changing when it transfer from human to human or do the significant mutations only occur between animals and humans? If you have had the virus, do the antibodies recognize slightly mutated versions of the same virus?
How do mutations affect the viability of a vaccine, will the vaccine need to be changed over time?
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