Frail older people and those in deprived areas remain at risk from covid-19, even after vaccination

The study Antonelli M, Penfold RS, Merino J, et al. Risk factors and disease profile of post-vaccination SARS-CoV-2 infection in UK users of the COVID Symptom Study app: a prospective, community-based, nested, case-control study. Lancet Infect Dis 2022;22:1. To read the full NIHR Alert, go to: https://evidence.nihr.ac.uk/alert/older-people-at-risk-from-covid-even-after-vaccine/