Vaccine efficacy on mutated strains is a debated topic. Let's wait for another 3-5 years before declaring the new-fangled vaccine as a great human achievement. Also lets solve all the blood-clot issues associated with the adenoviral vaccines.

https://www.webmd.com/vaccines/covid-19-vaccine/news/2021031...

https://www.oxfam.org/en/press-releases/two-thirds-epidemiol...