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29 Dez 1888 Jahr - Germ Theory

Beschreibung:

Paul Louis Simond experiments with rats, one on top cage that are healthy and rats on bottom which have fleas and are sick. Notices the fleas jump to the top rats and infect them. Proves this was the transmission

Zugefügt zum Band der Zeit:

Diseases and Discoveries Related That Have Impacted Recorded Human History

ByTommy Chhoeum
14 Dez 2018
1
0
923

Datum:

29 Dez 1888 Jahr
Jetzt
~ 136 years ago
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