Epidemiology is a subject that helps hospital management students to understand the general causes of diseases, analyze the causes, and find solutions to prevent and control diseases. At the same time, the epidemiology course helps students understand the research methods used in research in the community. Epidemiology is a science with scientific research methods that are data-driven and based on a systematic and unbiased approach to data collection, analysis, and interpretation. Basic epidemiological methods tend to rely on careful observation and use of valid comparison groups to assess what has been observed, such as the number of cases of disease in a particular area. within a particular time period, or the frequency of exposure among people with the disease, is different from what might be expected. However, epidemiology also draws on methods from other scientific fields, including biostatistics and informatics, with the biological, economic, social, and behavioral sciences.