Understanding false negative/positive in medical tests

[Snowdrop]

For those of us who are science challenged I decided to provide a link to web page that talks about statistics and what they really mean with regard to getting a positive or negative test result.

https://betterexplained.com/articles/an-intuitive-and-short-explanation-of-bayes-theorem/

I may add to this if I come across other useful info that explains concepts relevant to understanding medical testing or related matters.

Here's a link to several pages worth of primer on viruses and how antivirals work in the body:

https://www.shmoop.com/microorganisms-viruses/