So, we have evolved throughout the millennia with defective immune systems, and now through the use of vaccines we are able to improve our immune systems to evolve into super humans. Sort of like transhumanism?
Do you think it might be possible that some of these self-limiting childhood diseases have any benefit for the organism? For example measles and less asthma, or mumps and less cancer of the ovaries?
This made me laugh out loud :) No, absolutely not at all. Humans are in competition with their parasites and vice versa. This competition results in selection pressure that changes both organisms. Vaccines will never make us super humans LOL. http://en.wikipedia.org/wiki/Competition
Are you suggesting that children and diseases have evolved a mutualism? http://en.wikipedia.org/wiki/Mutualism_(biology)