Van Egeren et al, Harvard, PLOS, explains how mutations render the mandated products useless but still has enough RBD integrity to cause infection.  The worldwide failure of the program occurred with a narrow band of epitopes had no hope for durable protection. Anticipated.
“Dr. Geert Vanden Bossche asked if I can share this widely and so I am, for your consumption, take what you can from it, discard what you do not agree with, but this is quite useful IMO” – Paul Alexander
The bottom line is that the Pfizer Phase 3 trial which was used by NIAID, FDA and CDC to justify the emergency use authorization is pretty much a junk clinical trial which was inappropriately halted long before it even got close to meeting the intended follow up period, did not provide a sufficiently long follow up analysis of vaccination-associated adverse events, and in which the control group was intentionally eliminated. This resulted in basically erasing any opportunity to ever get to the bottom of what the major true risks of the Pfizer mRNA inoculations were. In terms of more minor risks, the study was not powered (not big enough) to evaluate those.
Here is the key data table which resulted from all of this hard work: