Kaynaklar
- Çeviri ve kalın italik yazıların sahibi: Prof Dr Ali Doğan Bozdağ, bozdaga@gmail.com
- https://english.elpais.com/spanish_news/2020-06-17/an-analysis-of-three-covid-19-outbreaks-how-they-happened-and-how-they-can-be-avoided.html?rel=mas
- https://english.elpais.com/society/2020-10-28/a-room-a-bar-and-a-class-how-the-coronavirus-is-spread-through-the-air.html
