1. Andersen KG, Rambaut A, Lipkin WI, Holmes EC, Garry RF. The proximal origin of SARS-CoV-2. Nat Med. 2020;26:450–2.
2. Cucinotta D, Vanelli M. WHO declares COVID-19 a pandemic. Acta Biomed. 2020;91:157–60.
3. World Health Organization. Global COVID-19 vaccination strategy in a changing world: July 2022 update 2022. [cited 2023 Jan 05]. Available from: https://www.who.int/publications/m/item/global-covid-19-vaccination-strategy-in-a-changing-world--july-2022-update.
4. Abecassis A. Five priorities for universal COVID-19 vaccination. Lancet 2021;398:285–6.
5. World Health Organization. WHO COVID-19 dashboard. [cited 2023 Jan 05]. Available from: https://covid19.who.int/.