The initial anti-body levels produced by Biontech are ridiculously high, something in the 10,000s, while other vaccines produce 1000 or 100. Any value above a f

The initial anti-body levels produced by Biontech are ridiculously high, something in the 10,000s, while other vaccines produce 1000 or 100. Any value above a few dozen or so is good. So 20% of 10,000 after six months is not really worrisome.