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2024 BCE
Evolution and Complexity of Theories
Cell Theory:
Importance of the discovery of the cell as the basic unit of life.
Germ Theory:
Expansion of the concept of microorganism to include viruses and prions.
Multifactorial Diseases:
Recognition of the interaction between genetic, environmental, and microbial factors.
Emergence of New Diseases:
Factors contributing to the emergence of new infectious diseases. -
2024 BCE
Microbial Theory
Discovery of microorganisms as a cause of diseases, Koch's postulates, Pasteur's work.
• Others: Older or less known theories -
2024 BCE
Humoral Theories:
Imbalance of the four humors (blood, phlegm, yellow bile and black bile), connection with natural elements. -
2024 BCE
Miasmatic Theory:
Diseases caused by bad odors and toxic vapors in the environment.