I’m Edward Jenner and I was told
Maids who got cowpox once never had another episode
So I-I-I injected James Phipps with a strain
He didn’t catch smallpox, he was as right as rain

I gave him inoculation
Despite some protestation
Was the first vaccination (vaccination)
Led to his rehabilitation (inoculation)
Imagine my elation (medication)
At my medical creation (creation)
And so my vaccination (vaccination)
Led to experimentation

By me!
Louis Pasteur, if you’ll please
Thought if that worked
Surely you can vaccinate against all disease
So I injected cholera into a hen
Turns out I was right, it lived to lay eggs again

I gave his immunisation
It was a made-up inoculation
Bit like my vaccination (vaccination)
But with a modification (modification)
Turns out this application (application)
Was a medical transformation (transformation)
It was a combination (vaccination)
Of our scientific dedication
Alexander Fleming
I invented penicillin
Accidentally
Like all the best discoveries
Him and him and me
Saved more lives than anyone in history
End disease that’s killing
With vaccinations and penicillin

We gave you vaccination (vaccination)
Penicillin and immunisation (immunisation)
We gave you vaccination (vaccination)
Penicillin and immunisation (vaccination)
We gave you vaccination (vaccination)
Penicillin and immunisation (immunisation)
We left a world that's cheerier (vaccination)
By dealing with bad bacteria