I've read all the posts, and one thing I didn't see was that you may have a hard time when your son goes to school. Our daughter had CP when she was 8 months old, a mild case, so she didn't have to have the immunization. However, when you start filling out forms for your child to start pre-school or kindergarten, they always ask you when they were immunized for CP. Since she wasn't, I just wrote in that she had had CP when she was 8 months old, etc. They never accepted that explanation, and always had to call us to ask us to explain why we didn't want her immunized - it had nothing to do with "not" wanting her immunized, she didn't NEED to be immunized. Just be ready for questions from people who are basically ignorant.