I did the same when lil Nikki1920 was born. I really did not want her to get the chickenpox vaccine, I had a HELLIFIED case of it when I was six, and I'm still here. For example, some Drs. recommend that babies get a flu shot, when not every baby needs it. (Usu. only ppl with compromised immune systems and the elderly should get flu shots, for others its at their own discretion)
I'm not sure what is going on with all those DC parents who dont have their children immunized, but this happens EVERY year, and the School District always waits until the WEEK before school to tell parents to get their child immunized. Why cant they start that message in the spring and continue in the summer? THAT I dont understand. Why you would not do what you needed to do to make sure your child was well is beyond me, and YES I understand that the health care system in DC is beyond shambles, but still.
I'm not sure that keeping the kids out of school is the answer, why not---oooh, a novel idea, here!!

---have the immunizations come to the SCHOOLS!!?
I think the best that any parent can do is to read about immunizations and make an informed decision.