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1 ene 1890 año - Koch discovers tuberculin

Descripción:

not and effective treatment, but ended up being a good for diagnosis (pictured: tuberculin skin test still used today to determine if a person is exposed to TB)

Añadido al timeline:

From A to Zika: Diseases and Medical Advancements Through Time

ByClaire
14 dic 2018
1
0
1211

fecha:

1 ene 1890 año
Ahora mismo
~ 135 years ago

Fotos:

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