The BA.4 and BA.5 are believed to be resulted from immune escape. Not sure if the antibodies from the current vaccines or from natural immunity (previous infection) work for these variants.It's interesting how many challenges they've had with these. They make sense for vulnerable people that have needed to avoid catching COVID so far, but I'm not really interested as I've already had Omicron (and three vaccines as well).
The severity could be moderate. Time will tell.
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