This is cruical information, if true. Increased titers in previously vaccinated individuals is precisely what one would predict during the waning phase of the immunity post vaccination if antibody dependent enhancement was occuring.
NBC had claimed that the titers in the vaccinated were higher, and I had inferred that this meant vaccinated were higher than unvaccinated. This needs to be resolved. In any case, we are in uncharted waters now. Has the virus evolved to escape vaccine selection, or ADE?