When DS was admitted last summer, there were a number of non-cf patients on the floor who were admitted because of H1N1. Mainly because the rooms available had different air handling systems, ability to handle stricter protocol in terms of gowns, gloves, masks. The rooms had a separate enclosed entryway to allow for changing, washing hands, etc.
So maybe they've moved her in order to protect and isolate her from other germs. Keeping you and your family in my thoughts and prayers.