Claim: A video of Bill Gates casts doubt on whether the Covid-19 vaccines work.
Fact-check: We do know that Covid-19 vaccines work - Full Fact
Verdict: it doesn't. bill gates was speaking in july 2020, before the results of the vaccine trials were known.
Organisation: Full Fact
Author: Leo Benedictus
Date published: 2021-09-28T00:00:00