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29 дек 1888 г. - Germ Theory

Описание:

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

Добавлено на ленту времени:

Diseases and Discoveries Related That Have Impacted Recorded Human History

ByTommy Chhoeum
14 дек 2018
1
0
926

Дата:

29 дек 1888 г.
Сейчас
~ 136 г назад
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