Understanding disease patterns in populations is central to public health practice. This book outlines the principles of epidemiology, including incidence, prevalence, risk factors, and study designs such as cohort, case-control, and randomized trials. It explains how to measure associations, interpret outcomes, and assess causality. Applications in outbreak investigations, surveillance, and evidence-based interventions are presented through examples and exercises. This essential resource trains students to analyze and apply epidemiological data for public health decision-making.
Trinity Foster is an epidemiologist dedicated to understanding disease distribution and determinants in diverse populations. She specializes in both communicable and chronic disease tracking, utilizing statistical models and surveillance systems to inform public health actions. Trinity has participated in several international studies involving outbreak investigation, data collection methods, and population risk assessment. Her teaching emphasizes epidemiological thinking and its application in public health research and practice. She is particularly interested in improving data accuracy and interpretation in field epidemiology.