Islandlady, did you see that her employer has held her position open but her doctor has not signed her as fit to return to work yet? Do you think you know this woman's medical condition better than her own doctor does? Where did you get your medical degree and when did you examine this woman?
Do you not understand that one person's illness is not identical to another's? That if you get flu, you might have it much more mildly than someone else? That one person's recovery from serious, life-threatening illness might be very different to someone else's?
I happen to know someone who has had cancer several times - originally breast cancer but has recurred in different places (most recently her lungs). She has, thankfully, survived each time and is still working (when she's able). But that doesn't make every other cancer survivor who is less fit a layabout - it just means my friend has been, in a sense, very lucky to be able to function very well, albeit with lots of time off work. And she's fortunate in having the kind of role where she can stay with the same organisation throughout all this - many people are less fortunate and have less understanding employers.