COVID AND THE VACCINE - TRUTH, LIES, AND MISCONCEPTIONS REVEALED, page-43979

However, future variants, as has been happening so far, are likely to be less deadly. In any case, a vaccine designed to protect people for the original strain and is already not working on omicron and is even less likely to work on the next variant, regardless of its fatality rate. (However, please don't discount the possibility of vaccine induced immunity degradation.)