A new method for near real-time, nationwide surveillance of nosocomial COVID-19 in Norway: providing data at all levels of the healthcare system, March 2020 to March 2022 Skagseth, Håvard and Jørgensen, Silje Bakken and Reilly, Jacqui and Kacelnik, Oliver, Eurosurveillance, 28, 2200493 (2023), https://doi.org/10.2807/1560-7917.ES.2023.28.12.2200493