Tuesday, April 21, 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 ›



from How-To Geek https://ift.tt/2VpByvV

No comments:

Post a Comment