Comment by vicvvv

you don't seem to get it, especially after so much coverage of the topic, the initial immuno-design was for the original COVID-19 strain, as the virus mutates and new variants emerge the efficacy of the original vaccine decreases; you have two options: a) get more immune protection from additional doses or b) get a new vaccine that is specifically designed for the new variant. ultimately, new and more variants will become weaker, and COVID will approximate the flu. this will require annual shots.