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2 Jun 1898 Jahr - Paul-Louis Simond

Beschreibung:

Proved that fleas were transmitting Y. Pestis

Zugefügt zum Band der Zeit:

B HLTH 224

ByKelly Stevens

13 Dez 2018

1

0

908

Datum:

2 Jun 1898 Jahr

Jetzt

~ 127 years ago

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