[ekidd]

> but you could be sitting in the air current of someone shedding virus particles for hours on end, even if the particles are eventually being filtered by A/C.

Airplane air turnover is _extremely_ high, apparently even higher than many specialized hospital environments. If there's any danger, I would imagine that it would come from the immediate airflow within the cabin, and not from gradual saturation of the cabin's air.

I don't actually have a good model of airplane risks. But I recognize that many of my intuitive assumptions about what's going on would need to be checked against real data.