Claim: The Mu variant of Covid-19 is "immune to vaccines".
Fact-check: Evidence so far does not show the Mu variant is 'immune to vaccines' - Full Fact
Verdict: the mu variant possesses a number of mutations, some of which may make it more likely to evade the immune system. however, it is incorrect to say that the evidence so far suggests the variant is entirely "immune" to vaccines, or that they won't work at all.
Organisation: Full Fact
Author: Daniella De Block Golding
Date published: 2021-09-13T00:00:00