1. Public Health England. Sources of UK flu data: influenza surveillance in the UK. Seasonal influenza: guidance, data and analysis: Public Health England, 2014.
2. Public Health England. Surveillance of influenza and other seasonal respiratory viruses in the UK: Winter 2020 to 2021: Public Health England, 2021:1–51.
3. World Health Organization. End-to-end integration of SARS-CoV-2 and influenza sentinel surveillance: revised interim guidance, 2022.
4. European Centre for Disease Prevention and Control. Operational considerations for respiratory virus surveillance in Europe 2022 [Available from: https://www.ecdc.europa.eu/en/publications-data/operational-considerations-respiratory-virus-surveillance-europe accessed 26 May 2024.
5. Griffiths E , Greci C , Kotrotsios Y , et al. Handbook on Statistical Disclosure Control for Outputs. Version 1.0. In: Group SDAPW, ed., 2019:1–92.