They are different versions of the same strain from what I'v
Posted on: May 6, 2020 at 18:44:45 CT
JeffB
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e read.
Corona viruses do not have the drastic shifts in their mutations that the flu does.
There could be changes in virulence or contagiousness, but they're still the same strain and vaccines are likely to still work for the variations for quite some time.