Vaccine effectiveness against hospitalisation estimated using a test-negative case-control study design, and comparative odds of hospital admission and severe outcomes with COVID-19 sub-lineages BQ.1, CH.1.1. and XBB.1.5 in England

https://www.thelancet.com/journals/lanepe/article/PIIS2666-7762(23)00174-6/fulltext?dgcid=hubspot_email_covidalerts&utm_campaign=lancetcovid22&utm_medium=email&_hsmi=283901121&_hsenc=p2ANqtz-9vt1S39EYaEAl0FYamCoc-NN9HEa52rRtAtLYjOIo06acamZqzZqy3rNxK82n-_MX7FtpyfVhvl4kRM6kGns29fUW08Q&utm_content=283899141&utm_source=hs_email