What about: first we knew nothing about the virus and didn't have vaccines, then they arrived, then the virus mutated, then we discovered that multiple shots he

What about: first we knew nothing about the virus and didn't have vaccines, then they arrived, then the virus mutated, then we discovered that multiple shots helped to mitigate the effects, etc? Science is not perfection, but it aims at it without vested interests, without hiding failures, actually using them to gather a better knowledge of the problem. When science fails, you can bet all your horses that it will try again with some added experience.