The cause of disease. Can be discerned using molecular Koch's postulates

Etiologic/Causative Agent

Robert Koch was a German scientist that was the first person to discover the connection between a single microbe and a human disease. He is credited with the discovery of  Bacillus anthracis, Vibrio cholera, and Mycobacterium tuberculosis. He also developed 4 postulates (rules) that must be proven in order to show that an organism causes disease

Robert Koch

Etiology refers to the study of causes of diseases

University of Notre Dame

Features of Epidemiology include:

- Etiology
- Disease transmission
- Morbidity
- Morbidity rate
- Mortality
- Mortality rate

Features of Epidemiology

Psychopathology refers to either the study or manifestation of psychological disorders. 

Psychopathology

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Link: https://openstax.org/details/books/concepts-biology/

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Microbiology covers the scope and sequence requirements for a single-semester microbiology course for non-majors. The book presents the core concepts of microbiology with a focus on applications for careers in allied health. The pedagogical features of the text make the material interesting and accessible while maintaining the career-application focus and scientific rigor inherent in the subject matter. Microbiology’s art program enhances students’ understanding of concepts through clear and effective illustrations, diagrams, and photographs.

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Spielman, R. M., Jenkins, W. J., & Lovett, M. D. (2020, April 22). Psychology (2nd ed.). OpenStax. https://openstax.org/books/psychology-2e/pages/1-introduction

OpenStax Psychology (2nd ed.) Textbook

Etiology

The mechanisms by which diseases are spread

Disease transmission

Morbidity

The number of diseased individuals out of a certain number of individuals in the population

Morbidity rate

Mortality 

The proportion of deaths due to disease in a population at a given point in time

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