No joke, it’s how they track covid and a few other diseases. Espscially in places where people don’t test themselves.
Sure, you won’t know who specifically is sick unless you’re testing only one person’s pipes, but the testers can get a general idea of how many people are sick.
Not just archeology … you could go into anyone’s garbage today and you’d find out a lot about them.
No joke, it’s how they track covid and a few other diseases. Espscially in places where people don’t test themselves.
Sure, you won’t know who specifically is sick unless you’re testing only one person’s pipes, but the testers can get a general idea of how many people are sick.