Quote:
Originally Posted by nomadking
But if the changes are internal to the virus particle, then it will appear to be the same thing to the immune system.
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The mutations that mainly concern us are the external ones, the "surface pattern" that the virus uses to get in to the cell and that the immune system recognises after infection.
We don't fully understand the antibody response over time yet, which is one of the issues being looked at in the national survey of 20,000 households that started last week and one reason why there isn't currently a totally reliable test to confirm if people have previously had the disease.