It may be dependent on accumulated sick leave. That’s the case in my district. But we roll over unused sick days so it’s not hard to build up a few weeks worth - provided you aren’t a first year teacher, and then you’re out of luck.

If they don’t have any sick leave, some districts allow a ‘sick bank’ where teachers can donate a couple of their sick days. 🤷🏻‍♀️ That is a specific question for the union rep.