As usual I like an Ed Yong article, because he's thorough and thoughtful and sometimes funny (not this time):
https://www.theatlantic.com/health/archive/2020/04/pandemic-confusing-uncertainty/610819/
"pandemics demand both depth and breadth of expertise.
To work out if widespread testing is crucial for controlling the pandemic, listen to public-health experts;
to work out if widespread testing is possible, listen to supply-chain experts.
To determine if antibody tests can tell people if they’re immune to the coronavirus, listen to immunologists; "
Follow
"...to determine if such testing is actually a good idea, listen to ethicists, anthropologists, and historians of science. No one knows it all, and those who claim to should not be trusted."