Patterns in epidemiology are identified through systematic data collection and analysis. Epidemiologists use a combination of descriptive and analytical approaches to study the distribution of health events. Descriptive epidemiology focuses on the "who, what, when, and where" of health events, while analytical epidemiology delves into the "how and why". Patterns are often visualized using graphs, maps, and tables to highlight spatial and temporal variations in disease incidence and prevalence.
