This deserves some music:

Old King Plague is dead,
the smallpox plague is dead,
no more children dying hard
no more cripples living scarred
with the marks of the devil's kiss,
we still may die of other things
but we will not die of this.

Raise your glasses high
for all who will not die
to all the doctors, nurses too
to all the lab technician who
drove it into the ground
if the whole UN does nothing else
it cut this terror down.

But scarce the headlines said,
the ancient plague was dead,
then they were filled with weapons new
toxic waste and herpes too,
and the AIDS scare coming on
ten new plagues will take its place
but at least this one is gone.

Population soars,
checked with monstrous wars
preachers rant at birth control
"Screww the body, save the soul",
bring new deaths off the shelves,
and say to Nature, "Mother, please,
we'd rather do it ourselves".

Old King Plague is dead,
the smallpox plague is dead,
no more children dying hard
no more cripples living scarred
with the marks of the devil's kiss,
we still may die of other things
but we will not die of this, oh no,
we will not die of this.

-- Leslie Fish, The Ballad of Smallpox Gone