Way down in the article, it describes some data that was not included in its analysis but nevertheless is quite interesting, where several people in a restaurant were infected by one other patron.

This is something straight out of a TV crime show:

> As the authors note, the restaurant in question was air-conditioned on the date in question. Using video footage, they were able to chart the position of every diner in the restaurant, and then map their subsequent infection status in relation to both the single infected individual known to be present at the time and the air conditioning system’s outgoing and intake streams. If the primary transmission mode of COVID-19 were by small, sub-Flüggian airborne particles, the presence of the forced air convection might have made the environment safer (especially since “smear samples from the air conditioner [itself] were all [COVID-19] nucleotide negative”). But the researchers instead found evidence for the opposite: “The key factor for infection was the direction of the airflow,” with downstream individuals being most at risk—a result consistent with the thesis that COVID-19 is transmitted primarily through the ballistic transmission of large respiratory droplets.

I could easily imagine that having been a key insight in an episode of "Bones" or "Elementary".

(If you are looking for something good to binge watch during COVID "stay at home", I recommend "Elementary", currently on Hulu and CBS All Access. It's a Sherlock Holmes set in modern times series. They did a really good job of taking many characters and plots from the original stories and adapting them in such a way that if you read the stories you will recognize them and perhaps even think you know what is going to happen--but they have changed just enough that the ending will still surprise you but also be eminently reasonable in hindsight. The stories that aren't obviously based on any particular original are equally good).