For the record that's my area of study, my degree and certification is in Medical Sciences and my area of interest is Immunology so I have an excellent grasp of the subject....I am just approaching the subject matter with a open mind and taking note of the points being made...vaccination is still a controversial topic within the community with many points for and against it...From the early days of Louis Pasteur to Edward Jenner, the subject has remain controversial...the experiment of Jenner would cause quite a stir today but its probably one of the single greatest discovery...I have work along with doctors who would not take vaccine for anything and others that are strong believers... I am certainly not barking the horn because I have a degree and , what I am saying that the financial incentive overrides the intention to do good of many of these vaccines, as vaccines distributed without going through the necessary rigorous testing....We cannot also be ignorant of the fact the vaccination help contained the Spanish flu and the very Polio you speak of....Nonetheless, there is what is known as idiosyncratic reaction to vaccines all of which are well documented and there are special interest groups that just pump the vaccination slogan to gain financial rewards often times some of the vaccines they back has shown no efficacy in dealing with the illness...Once again I would say, the big problem with Healthcare, we have moved away from the days of William Osler and now everything is financial and that's the problem.... to summarize vaccination remains a controversial topic with points for and points against, patients must first be educated and once they agree I see no problem with that but I cannot agree throwing everything down someone throat as I am aware of the special interest who seek financial gains without regard for anyone health....your erroneous statement "molecular biology propaganda books" is out of place as we rely on these very scientist to better understand the mechanism used by these viruses to evade the immune system....the understanding of these viruses are changing constantly and many of these viruses are quite ancient and play a more critical role than previous thought, so I certainly appreciate the hard work that these guys do...I certainly agree with your statement "there were still those that claimed to have isolated the Polio Virus" as that methodology wasn't develop but we cannot use that counter the work that is being done presently....