Boris Johnson's plan to ask nightclubs and other venues with large crowds to adopt Covid passports from Monday could put unvaccinated patients off receiving a jab, according to a statistician.
An ORB survey of more than 2,000 people found that, of respondents who had yet to receive a vaccine but were open to the idea, 44 per cent may be less likely to accept a jab if Covid certification became a requirement at clubs, theatres and sporting events.
Of those who said they were unsure...