WOOPS! POLIO! Salk and Sabin!
Ive also had smallpox vaccinations and no one vaccinated I know has ever come down with smallpox or polio.
Ive has Pneumonia several times and now get the vaccinations every few years.
As for the pneumonia, based upon my experience, I would recommend that you see a ENT specialist. I am of the opinion that my pneumonia episodes would originate in my nasal passages as a sinus infection which would then drain into my lungs. Occasional sinus wash with a hydrogen peroxide / saline solution has kept me free of sinus infections (after I had my septoplasty) for several years now.