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1 gen 1898 anni - Simmond shows how plague is spread

Descrizione:

Paul-Louis Simmond conducts and experiment and demonstrates that the plague is spread by fleas not miasma (pictured: Simmond placed two rats in a box, one with infected fleas one without, at the end both rats became infected)

Aggiunto al nastro di tempo:

From A to Zika: Diseases and Medical Advancements Through Time

ByClaire
14 dic 2018
1
0
1211

Data:

1 gen 1898 anni
Adesso
~ 127 years ago

Immagini:

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