Epidemiology Foundations: John Snow and the 1854 Cholera Outbreak

How do we trace the source of an infectious disease outbreak? Understanding how geographic data and scientific inquiry intersect is the key to modern public health and spatial epidemiology. This text-based course guides you through the historic 1854 London cholera epidemic, demonstrating how Dr. John Snow's investigative methods laid the groundwork for modern disease tracking. You will learn to think like an epidemiologist, analyzing historical data patterns and understanding how those same principles apply to modern global health crises. What you'll learn: - Understand the foundational concepts of epidemiology, outbreak investigation, and public health surveillance. - Analyze the historical context of the 1854 Broad Street cholera outbreak and the prevailing theories of disease transmission. - Evaluate Dr. John Snow's methodologies, including contact tracing, spatial mapping, and scientific deduction. - Explore how modern spatial epidemiology and GIS tools utilize geographic data to track and contain disease outbreaks today. - Apply critical thinking to data visualization, learning how to present public health data clearly and ethically. The course begins with essential terminology and the historical backdrop of 19th-century medicine before moving into a step-by-step analysis of the Soho outbreak investigation and its modern-day applications in global health. Designed entirely for beginners, this course requires no prior background in medicine, statistics, or mapping software. Start reading today to discover how maps and data can save lives.