I might have missed it, but I do not know if they tested for significant quantities instead of just presence. A presence of all sorts of pathogens is pretty com

I might have missed it, but I do not know if they tested for significant quantities instead of just presence. A presence of all sorts of pathogens is pretty common everywhere (you can find all sorts of stuff under kids nails), it is the concentration above certain thresholds that significantly increases disease risk. I would be interested in how concentrations of different pathogens compare between, say an airport, supermarket and hospital ER reception. My 2c.