[Herodotus38]

I would be interested in what they are testing, it probably wouldn’t be spores but likely something along the lines of biochemical compounds specific to certain species. For example we use blood tests for the presence of https://en.m.wikipedia.org/wiki/Galactomannan to help diagnose invasive aspergillosis.

[thatcat]

That requires wetlab work and those compounds usually aren't aerosolized, but i agree it would still be interesting to know the exact details