Good to hear she's getting better, being sick ain't no fun.
None that I have heard/read of, they can catch colds from people tho.
Do need to wash hands after handling, just to be on the safe side.
Need check you local laws as they are not legal to have everywhere.
I normally recommend getting a same sex pair as the are social animals and live in family group's of up to 20 individuals in the wild.
Having a pair helps when your short on time, single gliders need more "people time" than pairs do.
They can live up to 12~15 years in captivity, and their diets require more than store bough dry pellet food.
Let me know if you need more info.