I just got back from the AOS and they are very proactive about the spreading of germs. Before every dining facility all must wash their hands with rubbing alcohol. They have squeeze bags making sure all comply and they also have dispensers on the walls. You also must do the same when coming in from shore (not enforced, just reminded to do so).
It was great to see, made me feel much safer when aboard, I still avoided hand rails and washed hands every chance. Had a great cruise.
If RCCL reads theses perhaps before the casino as well, think of all the slot handles and chips being passed back and forth.