There is another side to this. Research into the original SARS-1 virus found antibodies to the spike protein (S-IgG) caused the severe disease. If the same is true of SARS-2, the most recently vaccinated populations would have the highest levels of spike protein antibody already circulating. When Israel went for the 4th wave of shots did that make them the most recently vaccinated population?
There is another side to this. Research into the original SARS-1 found antibodies to the spike protein (S-IgG) caused the severe disease. If that is also true of SARS-2, the most recently vaccinated populations would have the highest levels of spike protein antibody. When Israel went for the 4th wave of shots did that make them the most recently vaccinated?