Like many others born in the latter half of last century, some diseases to which Dr Dork's parents and grandparents were exposed had become eradicated (or virtually unknown) by the time he started
playing with dolls setting fire to kittens pottering dorkily about.
Polio is one such affliction. It exemplifies many of the diseases that we now vaccinate against, which in their relative absence many of us become complacent about. In essence – an uncommon disease, that has nonetheless devastating potential.
Dr Dork is not one to gamble with the health of himself nor his family.
The oral Sabin vaccine, now less commonly used, was a live virus preparation with a 1 per million (at most) possibility of contracting a strain of polio from the vaccine itself. The incidence has fallen so low, thanks to a program of eradication, that even this miniscule risk is too great, and the injectable Salk preparation, with no such possibility of disease inception, is used.
Religious fundamentalism, to be blunt, is to blame for the ongoing existence of this crippling illness, and for many completely unnecessary deaths.