@Elizabeth1855 I have mostly US travellers. I've had a small number of cancellations, mainly due to events being cancelled. Maybe more will cancel, after today.
I don't really think there's anything that can be done at this point, since health departments are advising people not to take non-essential travel, at least in the short term.
I have a "Moderate" cancellation policy, so pretty much everyone who cancelled is getting their money back. I'm not up to date with any Airbnb policy changes that may have occurred today, so I don't know if guests are getting the fees back too.
My cancellations have said they'll keep me bookmarked for a later date, so if their events are re-scheduled, things may pick back up later in the year.