Archive for March 18th, 2020

WSJ: “It’s Dangerous to Test Only the Sick”

March 18, 2020

Earlier this week, we posted Let’s make COVID testing actionable, providing a decision matrix and arguing that asymptomatic people (boxes A and C below) should be tested to determine if they are “hidden carriers” who should be quarantined.


Complementing our post, the WSJ published a piece arguing that “It’s Dangerous to Test Only the Sick

Its punch line: Random sampling is essential to learn the truth about virus spread and deadliness.

Let’s drill down on that…