Chapter 2 delves into the conceptual frameworks and models that underpin
epidemiological analysis and understanding. Beginning with an introduction to the
themes of the chapter, it explores foundational models, such as the Epidemiologic
Triad and the chain of infection. The chapter elucidates the natural history of the
disease and presents various epidemiological frameworks used to study and interpret
disease dynamics. Through a comprehensive examination of these models and
frameworks, readers gain a deeper appreciation of the conceptual tools essential for
epidemiological inquiry
Keywords: Epidemiological Models, Epidemiologic Triad, Chain of Infection, Natural History of Disease, Frameworks, Disease Dynamics.
