Claim: Professor Jonathan Van-Tam said that when Covid-19 is low in the community the risk of developing a blood clot for the under-30s increases.
Fact-check: The risk of vaccination does not rise when Covid-19 becomes scarcer - Full Fact
Verdict: this is not what professor van-tam said, nor is it quite right. what changes is the balance of risk. when covid is extremely scarce, the risk of young people suffering a rare blood clot after having the astrazeneca vaccine might outweigh the benefit of the vaccine.
Organisation: Full Fact
Author: Sarah Turnnidge
Date published: 2021-05-05T00:00:00