He is on the sick (leave)
Anabel: Isn’t your brother working today?
Norman: Oh,no. He is on the sick. He had surgery two weeks ago and he is recovering.
Otras expresiones de este tipo son:
- El médico me dio de baja ( the doctor signed me off work)
- El médico me tiene que dar el justificante de la baja (I have to get a sick note for my doctor for proof)
- If you are ill, don’t forget to call in sick, otherwise you could get into trouble from the boss (pedir la baja)