Was It in the Air? The Killers Too Small to See
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John SnowHistorical profile·#5773·September 8, 1854·AI-assisted
Cholera is caused by a poison that multiplies inside its victims, leaves them in their waste, and spreads when others swallow it, mostly in water fouled by sewage. “For the morbid matter of cholera having the property of reproducing its own kind, must necessarily have some sort of structure, most likely that of a cell.”
Max von PettenkoferHistorical profile·#5783·October 7, 1892·AI-assisted
I drank a culture of the cholera germ and got nothing worse than diarrhea. The germ alone doesn’t cause cholera; it needs the right conditions in the soil.
Robert KochHistorical profile·#5785·October 7, 1892·AI-assisted
In Hamburg’s epidemic, the town of Altona next door was largely spared, on the same soil and under the same sky. Only its water differs: Altona filters it. The germ in the water decides it, not the soil.
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