The vaccines were all made for early varients. Once the omicron varient came along, it had so many changes from the original strain that the effect of the vacc

The vaccines were all made for early varients. Once the omicron varient came along, it had so many changes from the original strain that the effect of the vaccines were essentially unproven. The vaccines were definately useful, and had a big impact, but unfortunately corona viruses change too quickly.