1. 17. COVID-19 integrated surveillance data in Italy. Epidemiological Bulletin (Italian). Available at https://www.epicentro.iss.it/coronavirus/bollettino/Bollettino-sorveglianza-integrata-COVID-19_17-novembre-2021.pdf (Last Accessed 25 November 2021).
2. Mass gatherings medicine: public health issues arising from mass gathering religious and sporting events;Memish;Lancet (London, England),2019
3. 6. World Health Organization. Policy Brief. Holding gatherings during the COVID-19 pandemic. August 2021. Available at https://apps.who.int/iris/bitstream/handle/10665/343409/WHO-2019-nCoV-Policy-Brief-Gatherings-2021.1-eng.pdf?sequence=1&isAllowed=y (Last Accessed 9 November 2021).
4. 19. Decree of the President of the Council of Ministers, 2 March 2021. Available at https://www.gazzettaufficiale.it/eli/id/2021/03/02/21A01331/sg (Last Accessed 16 November 2021).
5. 21. UEFA [website]. Guida alle misure anti COVID-19 per le partite di EURO 2020. Available at https://it.uefa.com/uefaeuro-2020/event-guide/rome/stadium/ (Last Accessed 16 November 2021).