“In life and in science, changes have consequences. With hindsight, the bad ones are easy to see, some may argue. But when we examine the natural consequences of changes in the arena of Covid vaccine science, one might be forgiven for asking: surely someone must have cautioned against doing that? Of course it behoves us to state here, before we examine those consequences: that’s why new drug/vaccine products are supposed to be thoroughly tested before they are given to large populations […] the question should have been asked: but what would be the consequences of switching off that important early warning system?”