1. COVID-19 vaccines: authorised | European Medicines Agency; n.d. https://www.ema.europa.eu/en/human-regulatory/overview/public-health-threats/coronavirus-disease-covid-19/treatments-vaccines/vaccines-covid-19/covid-19-vaccines-authorised [accessed January 20, 2023].
2. EU Vaccines Strategy; n.d. https://commission.europa.eu/strategy-and-policy/coronavirus-response/public-health/eu-vaccines-strategy_en#authorised-vaccines [accessed January 20, 2023].
3. Effectiveness of the BNT162b2 Vaccine after Recovery from Covid-19;Hammerman;N Engl J Med,2022
4. Ministerio de Sanidad - Profesionales - Estrategia de vacunación COVID-19 en España; n.d. http://www.mscbs.es/profesionales/saludPublica/ccayes/alertasActual/nCov/vacunaCovid19.htm [accessed January 20, 2023].
5. ECDC. Overview of the implementation of COVID-19 vaccination strategies and vaccine deployment plans in the EU/EEA; Jan 2022 2022.