This formula gives you the odds someone on a plane is infected: 1-(1-IR)^N N is the number of seats. IR is the infection rate. Takes a lot of assumptions to

This formula gives you the odds someone on a plane is infected: 1-(1-IR)^N N is the number of seats. IR is the infection rate. Takes a lot of assumptions to get the odds someone on the plane is infected, and even more to get the answer you want. The biggest assumption would be how likely you are to get the virus just because someone on your plane has it. You could replace the N with total number of people at an airport. Again, not that helpful because it takes a lot of assumptions and only gives you half the picture.