I came across a great page explaining how COVID-19 superspread events happen. It’s written by an epidemiologist who starts out with a description of how the disease spreads. (Basically, risk of infection = (the density of virus particles shed) x (the length of time you’re exposed to those particles).
She then goes on to describe superspreading events, including one in an office and one in a restaurant. (In the example involving the office, half of the room had a much higher infection rate than the other because of the direction in which the office ventilation system pumps air.)
I’m looking for this essay/blog entry/article, but I can’t find it. IIRC, the writer’s name starts with a B. I think I came across it on the SDMB, but I’m not sure. If you could find this piece for me, I’d be very grateful!