There are legitimate medical conditions where you're not supposed to give the vaccine, some temporarily, some permanently. Given that the kid was a patient at CHoP, I'm inclined the give them the benefit of the doubt. I'm not excusing the parent for not getting the medication, nor for sending the kid to daycare, but I'm going to give the kid the benefit of the doubt on receiving the vaccine. [I suspect I'm wrong to do so, but am doing so nonetheless.]