![](http://www.alamy.com/thumbs/6/AAB9A59B-F086-4926-9950-E453AC5A0D33/2X0G8R9.jpg)
Louis Pasteur, proponent of the 'germ' theory of disease.
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Keywords: chemist, chinico, crystals, dei, disease., enantiomerism, esperimento, experiment, francese, french, germ, germi, laboratorio, laboratory, louis, malattia, microbiologia, microbiologist, microbiology, modern, moderna, pasteur, proponent, researcher, ricercatore, teoria, theory