The problem with the 'anti-vaccine' group, IMHO, is that their concerns are rarely communicated well (or by knowledgeable people). I certainly won't claim to speak for them or all of them (I have no children, and have all of my vaccines), but I can shed a little light on some of the perspective. Many of those people are not anti-vaccine. Actually they fear the adjuvants and preservatives that come with it. Aluminum salts are a common adjuvant and mercury-based preservatives have been used. If you go to this cdc website (
http://www.cdc.gov/vaccines/va... ) formaldehyde is listed as well. Mercury is an extremely potent neurotoxin, formaldehyde is a carcinogen, and there is no healthy level of aluminum for your body either.
Ability to metabolize toxins and excrete them varies widely between individuals, many people have deficiencies in their abilities. Children's ability to metabolize toxins are not the same as adults. To top it off, the resources in the body needed to metabolize them (antioxidants, enzymes, conjugating molecules) are consumed by many things in the environment --> Did the chem-lawn folks just spray your lawn? Did you recently repaint the infant's room before you brought the baby home from the hospital? New carpeting in the house? On a constant basis, you are breathing, touching, drinking and eating toxins -- everything is contaminated to some measurable degree today (with lead, mercury, arsenic, cadmium, etc)...usually in very very small quantities, but some of these things bio-accumulate. So how much stuff is your body dealing with when you get the vaccine and how will that affect development? The medications you might be taking all rely on the same chemical transformations and consume those resources as well.
In case you wonder if these toxins can have any effect, here is something produced by the United States NIH discussing the impact of environmental toxin exposure on children. http://ehp.niehs.nih.gov/11041...
Clinical toxicology (understanding the effect of toxins on the body) is not nearly as advanced as many of you probably imagine it is. Much of our knowledge comes from the last 15 years and a great deal is still not known. By the way, knowledge of clinical toxicology is virtually absent from the MD curriculum (at least here in the US).
And one last point to everyone who is pro-vaccine and antagonistic to those who aren't, I would like to point out that if YOU did not do the science yourself, then these issues come down to who you trust (I wouldn't trust Jenny McCarthy either). I bet all of you have an opinion one way or the other about climate change, but almost none of you have actually looked at the data and models yourself. Claiming "its science you idiots" when you did not do the science is pretty similar to religion....belittling someone with a *belief* that differs from yours because yours must be the one true god.