There is a intense debate going on in some circles about this subject.
Some think that vaccines are poisonous because some of them contain traces of mercury.
Some others believe that autism can appear, at least in part, as a reaction to certain vaccines.

No real proof has ever been presented for any of those assertions yet the storm is raging on.

Here is my take on this.

Basically we have two kinds of infectious diseases that can be prevented through vaccination.
Some that have high mortality rates or survivors are left with permanent damages: small pox, polio and rabies come to my mind right now.
Others that are milder or just a nuisance, for most people at least. Measles, mumps, chickenpox… Of course, there are people who develop serious consequences from having one of these, for instance mumps can be a real problem if had at an older age and chickenpox is really dangerous for pregnant women, but on the whole this second category is less dangerous than the first.
Now what I would really like to know is would anyone seriously consider not vaccinating their children for the first category of diseases IF MOST OF THE GENERAL POPULATION HADN’T ALREADY BEEN VACCINATED?

I know that there are some religious extremists who try to disrupt immunization against polio in their countries. This only fuels my dilemma: what does it really mean to be a rational human being?