Fri. Jun 5th, 2020

What Is Contact Tracing, and How Can It Fight Pandemics?

During the middle ages, the doors of households suffering from the Black Death were marked with a red cross. It served as a warning: Do not enter, or ye shall suffer the fate of everyone inside.Read This Article on How-To Geek ›

During the middle ages, the doors of households suffering from the Black Death were marked with a red cross. It served as a warning: Do not enter, or ye shall suffer the fate of everyone inside.

Read This Article on How-To Geek ›