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I'm David Brown, and this is Business Wars Daily on this Wednesday, April 15th.

Epidemiologists are often referred to as disease detectives. When it comes to epidemics, one job is to determine who was patient zero and how did they spread the illness. One of the

most effective ways to halt an epidemic is to identify who a sick person has been close to and

quarantine both the infected person and all of his or her contacts. But figuring that out is no easy task.

Typically, these disease detectives use interviews to do this work, which is called contact

tracing. To oversimplify, if you can identify who's been near a sick person and get them to

self-isolate and get them tested, well, if that's possible, you may be able to slow and eventually

stop an epidemic.

When it comes to COVID-19, there are significant problems with humans serving as the only

disease detectives. For starters, the numbers are far too large for public health detectives

...