The unknown is a concern. I should be fine I think even if I contract it, which at this point is statistically unlikely. The delayed onset of symptoms is a concern.
In happier news, my heat pump is back pumping, and my new lens arrived today. I played with it a bit, it's an 18-400 mm zoom, which sounds impossible to me. The photos look fine to me, I'm sure someone would find lack of crispness in the edges at some focal lengths.