Yes. Measles, mumps and chicken pox are childhood diseases that are not deductible from your sick time. Ask your school secretary or UFT chapter leader for an OP 198 application to submit to your principal. Form: http://www.uft.org/files/attachments/op198.pdf
Your principal may also excuse additional non-attendance days other than for illness such as jury duty; bereavement; graduation; extraordinary transit delay; and for donating blood or cancer screening. You must submit an OP 201 application. Permissible non-attendance days are listed on that form. Form: http://www.uft.org/files/attachments/op201_0.pdf