Personal/Sick Days

I am looking for information regarding personal time for employees hired on availability in Quebec.
I can see that Part-time employees must be granted the same vacation and vacation pay if they perform the same duties as the other employees of the organisation  https://www.educaloi.qc.ca/en/capsules/employment-rules-annual-vacation     I haven’t found anything regarding sick days.
Could you let me know what vacation and sick-days are allotted to availability workers in Québec? 
We’re having a difficult time understanding how we could be expected to pay someone who works only very rarely if they are sick the day that they are called into work.