I can only elaborate in general terms. We're involved heavily in the handling of patients who are high risk behavioral concerns. A typical briefing may include the words, "He's on all the drugs," and the person would be speaking literally. Many of these people are suicidal and/or homicidal. This isn't a population who's really got a firm grasp on concepts related to infectious disease control, such as social distancing and keeping your bodily fluids to yourself.
So, toss in Covid-19 and the fact that I'm a bit fat and a bit asthmatic, and over 50 . . . so, lucky me!