Read this essay to learn about the two main types of epidemiological studies. The types are:- 1. Observational Epidemiological Studies 2. Experimental Epidemiological Studies. Essay # 1. Observational Epidemiological Studies: (a) Descriptive Studies (b) Analytical Studies (i) Case control—Case Reference (ii) Cohort—Follow-Up. (a) Descriptive Studies: Descriptive epidemiology deals with the study of the magnitude of […]