I once read a sci-fi story about a guy who dreamed up a dangerous machine. He was thinking through the electronics of it, and worried momentarily that if his brain made those pathways, he would initiate the machine.
Anyway, I think we need to consider 'x-factor' transmission, and prepare that way. This means expecting illness, rather than the usual route (efforts to limit contact with potential infectors)
I'll still wash my hands, and avoid anal sex with Chinese tourists, but my preparations are more dark.
More water containers
More fuel stored
More dry goods stored
Keep machines full-of-fuel
Ensure my health needs don't rely on the public hospital
I suggest everyone else do the same. And if it gets bad, don't hide from it. Go help those around you. You are probably infected anyway, so the best effect we can have is helping the vulnerable among us to weather this.