References:
1. The Sinopharm COVID-19 vaccine: What you need to know (2021, May 7). Retrieved July 27 2021 https://www.who.int/news-room/feature-stories/detail/the-sinopharm-covid-19-vaccine-what-you-need-to-know
2. Wilder-Smith, A., Hombach, J., Marti, M., & O’Brien, K. (2021, May 24). Interim recommendations for use of the inactivated COVID-19 vaccine BIBP developed by China National Biotec Group (CNBG), Sinopharm. Retrieved July 27, 2021, from World Health Organisation website: https://www.who.int/publications/i/item/WHO-2019-nCoV-vaccines-SAGE_recommendation-BIBP-2021.1
3. COVID-19 advice for the public: Getting vaccinated (2021, July). Retrieved July 28 2021. https://www.who.int/emergencies/diseases/novel-coronavirus-2019/covid-19-vaccines/advice