> The US Vaccines[1], and the related vaccines, are highly limited resistance specific to a spike protein only, perhaps with boosters, to a number of spikes see

> The US Vaccines[1], and the related vaccines, are highly limited resistance specific to a spike protein only, perhaps with boosters, to a number of spikes seen. Total = 1, perhaps 2 if it includes a delta variant spike booster also. This is bogus. A broad spectrum of immune response develops through mutation and maturation of B cells. This is why we see broad neutralizing activity-- even against Delta without a Delta-specific booster-- against all variants from vaccination.