7 Jul 1909 Jahr - Typhus

Beschreibung:

Charles Nicolle discovered lice were vectors of typhus in 1909. He tested his hypothesis on a chimpanzee and was able to reproduce typhus in the chimpanzee, in the process proving lice as the carrier of typhus.
(from https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2819868/)

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