I personally agree with the idea of making a national vaccination program. You wouldn't believe what a nightmare it is to try and track down shot records for children who have lived in other states when the parents haven't kept track of their records. It's a nightmare just crossing counties and trying to get shot records. Our state has started a statewide registry but it is not fully functional across the state yet.
I have vaccinated countless hundreds of children - and never once have any of those children come back with problems from the vaccinations. Ditto for my mother in law who is also a pediatric nurse, except she's done countless thousands (she's been a nurse much longer than I have, lol).
Vaccinations made a tremendous difference in the mortality rate of children and adults. Polio, a crippling disease, is non-existant in our country because of vaccinations. However, children who are not vaccinated are definitely at risk of contracting these diseases. Sure, we have great medical care that can mitigate some of the fatalness of these diseases, but with mumps and measles you can still end up with children who are deaf or blind. The same can be said of smallpox. One very real risk is something that was in the news a lot after 9/11. Because we no longer vaccinate children for smallpox (because it was eradicated), our children are at risk of contracting it should someone introduce the virus in a community. Yes, there are countries (even the US) which have these viruses in storage for study. Just because they don't exist among us doesn't mean they don't exist at all. For this reason, unimmunized children are not only at a major risk themselves, but also place at risk people in the community because they can be carriers of these various diseases and expose people to them. Some vaccinations do not provide lifelong protection while others do. A lot of that has to do with the person's own body as well as the type of contagen.
Regarding the possible link between ADD and vaccinations, much of that was linked to the use of mercury in manufacturing the vaccines. Around 1999 a law went into effect that banned the use of mercury in vaccinations. They are no longer made with mercury.
In the US children entering public or private schools are required to have certain immunizations. The only exception is for religious conflicts. However, the denomination you are affiliated must have a decree that they do not support the use of vaccinations, and if you are asked to do so, you must provide proof that you are a practicing member of that religion and that the religion has a policy against vaccinations. You can't just say you disagree with it for religious reasons.
For me personally, I did vaccinate my children; but, not according to the state guidelines. I waited to begin shots until they were almost a year old. I have not allowed my 4 year old to receive Varivax (chickenpox immunization), yet.
) did anyone not vaccinate their children? We are concerned about the possible problems that may arise from this. 
