Cover your mouth, wash your hands, don't touch your face. Do that and most people will be ok.
Obviously, elderly and those with compromised immune or respiratory systems should be more concerned.

I think the spread of the virus is worth monitoring but not worth panicking over.
I also suspect there will be a push to immunize the athletes... they are working on vaccines.

If no spectators show up, would they still hold them? LOL (they should IMO)