[joglynne]

Originally Posted by jfman

Sounds like a lot of shite.

On a serious note there's been instances of US colleges analysing waste from different dormitories/halls to target testing to identify cases.

https://www.npr.org/2020/10/26/92583...=1621441983564

I do seem to remember, in the deep dark depths of my memories from the 70's something about a similar testing technique in connection with LSD.

From my link I liked the comment ....

“It is like taking a stool sample from a collective bowel,” said James Trout, who oversees the laboratory.

...... and suspect that it will be an image that lingers in my brain for some time.