اللغز خلف تطوير لقاحات COVID-19 بهذه السرعة!

1. Vaccine Research & Development - Johns Hopkins Coronavirus Resource Center [Internet]. Johns Hopkins Coronavirus Resource Center. [cited 14 November 2021]. Available from: هنا
2. How It Was Possible to Develop COVID-19 Vaccines So Quickly [Internet]. Healthline. 2021 [cited 14 November 2021]. Available from: هنا
3. Is it true? Were COVID-19 vaccines developed too quickly to be safe? [Internet]. Australian Government - Department of Health. 2021 [cited 14 November 2021]. Available from: هنا