Effectiveness of COVID-19 vaccines against Omicron and Delta hospitalisation, a test negative case-control study
oleh: Julia Stowe, Nick Andrews, Freja Kirsebom, Mary Ramsay, Jamie Lopez Bernal
| Format: | Article |
|---|---|
| Diterbitkan: | Nature Portfolio 2022-09-01 |
Deskripsi
SARS-CoV-2 variants of concern have been associated with reduced vaccine effectiveness, even after a booster dose. In this study, authors aim to estimate vaccine effectiveness against hospitalisation with the Omicron and Delta variants, using different definitions of hospitalisation in secondary care data.