Comment Re:They're stupid (Score 4, Interesting) 1025
Why does having a vaccination "stress [your] son's immune system out" more than his routine everyday exposure to hundreds of potential pathogens, such as those on your skin or in his crib?
There's a good review here of the development of the human immune system both pre- and post-natal. It's entirely possible that the difference in immune function between young children and adults is an adaptive trait, given that most classes of pathogen will be encountered in the first few months of life. Your baby might look fragile, but he's had T-cells since he was a 12-week old fetus.