Epidemiology Key Concepts & Case Studies 2026/2027 – 30+ Questions & Answers, Incidence, Prevalence, Surveillance & Disease Outbreaks

This 8-page Epidemiology Key Concepts and Case Studies 2026/2027 study guide contains 30+ multiple-choice questions, answers, definitions, and case-study concepts covering foundational epidemiology and population health. The material explains epidemiology as the study of health-related events in populations and reviews essential concepts such as epidemics, surveillance, health risks, health-related outcomes, determinants, incidence, prevalence, notifiable diseases, burden of disease, and chronic disease. The opening questions directly test contact tracing as the identification and notification of people exposed to infection, surveillance as ongoing population-health monitoring, and epidemiological inquiry as the investigation of disease patterns and associations. A major focus is disease occurrence, transmission, and public-health monitoring. Students review epidemics as disease occurrence above expected levels, epidemic curves as graphical representations of disease occurrence over time, incidence as the number of new cases in a population, and prevalence as the total number of existing cases. The material also covers the chain of infection, contact tracing, notifiable diseases, surveillance, and population health risks, providing a concise foundation for understanding how epidemiologists monitor and investigate health events. The guide also examines determinants of health and population-level risk. Biological determinants are presented as genetic and physiological factors affecting health, social determinants as socioeconomic influences on health status, and environmental determinants as external influences such as pollution. These concepts are paired with health-related outcomes such as disease, injury, and death, helping students connect population exposures and determinants with measurable health outcomes. Several important epidemiological studies and case studies are included. The Framingham Study is associated with the long-term identification of cardiovascular disease risk factors, while the Women’s Health Initiative addresses health interventions among postmenopausal women. The document also covers the Jackson Heart Study and cardiovascular health among African-Americans, the Doll and Hill Study linking smoking with lung cancer, and the dose-response relationship between exposure levels and health outcomes. The final portion extends these principles to notable disease and outbreak examples, including COVID-19 epidemiology, eosinophilia-myalgia syndrome associated in the material with L-tryptophan supplementation, and the hantavirus epidemic in the southwestern United States. Together with the document’s concepts of surveillance, contact tracing, epidemic curves, incidence, prevalence, and determinants, these examples provide students with a compact introduction to how epidemiological principles are applied to real population-health problems. Relevant Students: This document is relevant to epidemiology students, public health students, nursing students, medical and pre-medical students, community health students, health sciences students, environmental health learners, and students taking introductory population-health courses. It is particularly useful for learners preparing for assessments covering incidence and prevalence, surveillance, contact tracing, disease transmission, determinants of health, outbreak investigation, landmark epidemiological studies, and population health. The uploaded document does not provide a course code or university name, so neither should be invented for the listing. Keywords: epidemiology key concepts, epidemiology questions and answers, epidemiology 2026, epidemiology 2027, epidemiology study guide, epidemiology case studies, epidemiology exam questions, public health exam, incidence and prevalence, disease surveillance, contact tracing, epidemic definition, epidemic curve, epidemiological inquiry, chain of infection, notifiable diseases, health determinants, social determinants of health, biological determinants, environmental determinants, health related outcomes, burden of disease, chronic disease epidemiology, population health, outbreak investigation, Framingham Study, Jackson Heart Study, Womens Health Initiative, Doll and Hill Study, smoking and lung cancer, dose response effect, COVID 19 epidemiology, eosinophilia myalgia syndrome, hantavirus epidemic, infectious disease epidemiology, disease transmission, population health surveillance