Four in 10 people think those without a COVID-19 vaccination will be discriminated against, while around a quarter of the public have concerns about vaccine passports, according to a new study. The research, by the University of Bristol and King’s College London, also finds that three in ten people say the vaccine rollout has increased their trust in the UK government, and that before the latest news about the AstraZeneca vaccine, a majority did not believe it causes blood clots.