So, this whole “article” is pretty light on any details here.
Was this her first offense? Did she have vacation time and chose not to use it? Did she use up all of her vacation time and then chose to take sick days? Did she have other offenses that led up to this termination call?
I mean when I used to have a job with vacation/sick leave, no one ever got sacked for taking a sick day or two to just have some time off, UNLESS, it was chronic, you had other performance issues, or you used up all of your vacation and decided to game the system and took like a week long holiday anyways and got caught.