A week before measles outbreak, fewer than half of CPS students without stable housing were fully immunized – Chicago Tribune/MSN

School registration should go hand in hand with facilitating access to immunizations, said Dr. Olusimbo Ige, Chicago Department of Public Health commissioner. State law typically requires all students to receive MMR (measles, mumps, rubella) immunizations, unless a parent or guardian submits either proof that the child previously contracted measles or a medical or religious exemption. Fewer than 1% of students had a religious or medical exemption as of November, CPS said.