https://web.archive.org/web/20200213131452/https://www.vox.com/recode/2020/2/13/21128209/coronavirus-fears-contagion-how-infection-spreads https://web.archive.o

https://web.archive.org/web/20200213131452/https://www.vox.com/recode/2020/2/13/21128209/coronavirus-fears-contagion-how-infection-spreads https://web.archive.org/web/20200213131452/https://www.vox.c...