Vaccines—Who Needs 'Em?

[Philippus Flavius Homovallumus]

No, I am talking about real world benefits. How many people walk around with smallpox? Why do you have to talk a smallpox vaccine if you cannot afford it?

There is no Smallpox because we eradicated it through a forced vaccination program - we even closed a temple in India and forced everyone to get the job (the temple was an infection vector and people went in there to get infected).

Now there's no Smallpox, a disease so terrible that even the suggestion of its return would cause mass panic.