1. BioNTech, Project Lightspeed, 2021. https://www.biontech.de.
2. Moderna, Inc., Moderna’s Work on our COVID-19 Vaccine, (n.d.). https://www.modernatx.com/modernas-work-potential-vaccine-against-covid-19.
3. First COVID-19 Vaccines Receiving the US FDA and EMA Emergency Use Authorization;Fortner;Discoveries (Craiova).,2021
4. European Medicines Agency, Conditional marketing authorisation, 2018. https://www.ema.europa.eu/en/human-regulatory/marketing-authorisation/conditional-marketing-authorisation.
5. Food and Drug Administration, Emergency Use Authorization, 2021. https://www.fda.gov/emergency-preparedness-and-response/mcm-legal-regulatory-and-policy-framework/emergency-use-authorization.