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In the fourteenth century plague would not have been taken as a basis to explain the transmission of "germs" without analysis would not have been able to control
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Girolamo Fracastoro in 1546 would not have spoken of the importance of epidemic transmission of an agent, and today is being in a room with many sufferers not imply a clear risk to health
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Zacharias Janssen in 1590. Had not invented the microscope, and today would think that the only living beings are what you can see at a glance
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1668 The Italian physician Francesco Redi would have shown that there is no expontanea generation of worms in the exposed area, and today we continue attributing disease to magical causes
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General Hospital of Vienna in 1847 medical obstetrician Ignaz Semmelweis would have linked the deaths around childbirth caused by inefficient disinfection of the time, today you would have a much smaller world population
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1854 John Snow would not have located a cholera outbreak identifying the contagion was by drinking contaminated water, today the transmission of a disease is to understand the theory of miasma
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Louis Pasteur 1864 would not have spoken of fermentation and the search for disease-causing agents
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In the second half of the nineteenth century was developed the germ theory explaining that small organisms were the cause of many diseases
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The Canon of Medicine (1020), Abū Alī ibn Sīnā would not have spoken about body secretion is contaminated, and then it would be sweat today synonymous with elegance!
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Today would have endless proliferation of diseases, uncontrolled and puzzling deaths, medicine would not have been able to advance science and be stagnant
