Pasteur vs Koch: who cornered the germ?

I proved germs cause disease and then taught the body to fight back with vaccines—rabies, anthrax, the very milk you drink bears my name.

Charming, Louis, but you guessed where I isolated: I photographed the tuberculosis bacillus and gave the world rigorous rules for proving cause.

Rules are lovely, Robert, yet a child bitten by a rabid dog does not need your postulates—he needs my cure, and he lives.

And that child breathes only because I showed which organism to hunt; prevention without proof is merely a hopeful spray of vinegar.