The new India & Pakistani variants not so much...
https://www.businessinsider.in/international/news/a-covid-triple-mutant-found-in-india-could-be-much-more-deadly-and-may-be-resistant-to-existing-vaccines/articleshow/82209835.cms
I would rather be partially unprotected against two than totally vulnerable to all nine.
Just pray to Our Lady of Perpetual Vaccination.