I’m describing a well established public health measure called “contact tracing.” I am using the term as it is normally used by public health authorities. There is a Coursera course Johns Hopkins Department of Epidemiology on how to do it.
I dipped into the course. You can too. It’s free. You can watch the lectures, but they also provide transcripts.
The contact tracer first talks to the person who tested positive. The course provides a sample call. The contact tracer talks about the symptoms, then talks to the person about isolating and makes sure that the person is able to do that. (In some jurisdictions, for some people, there are places they can go to isolate, if they can’t do it at home. In most jurisdictions, social workers can help out if the person needs help to get food and medicine.)
Then the contact tracer carefully goes through the person’s contacts in the relevant time period. This is where skill and charm comes into play, to help the person recall as much as possible.
Then the contact tracer wraps up the call, sympathizing with the person’s plight, reminding them to stay home, reminding them to get medical help if they get worse, and assuring them that the contact tracer will check in again soon.
After that, it’s time to talk to contacts. The course says that if the person was in a big anonymous group, like a movie theater, then the contact tracer reports that to their supervisor for handling, so I don’t know what is done in that case. But for identified individuals, the contact tracer gets to work. They call each contact up. The course gives a sample call for that too.
The contact tracer gives the bad news that the person was exposed, without saying who was the infected person they were exposed to. They go through the quarantine process. This is a long call, and again, charm and skill go into it, because the tracer needs to establish rapport with the exposed person. The tracer talks about the help that is available to the exposed person as they stay home.
Contact tracers will keep checking back with both the infected people and the exposed people. It’s a social process. A poster in one of these threads said they thought they’d be a good contact tracer because they are a journalist. I think that’s right; the process of working with a source over a period of time would be similar to the process of working with an infected person or a contact over time.
You may think that contact tracing won’t work for this epidemic. But that doesn’t mean you can redefine a term of art.