Your task is as follows:1. Define to them the field of epidemiology.2. Briefly list a historical evolution of epidemiology.3. Explain the terms outbreak and epidemic.4. The Introduction to epidemiology video discussed the Legionnaire’s disease outbreak in 1976. Brieflydescribe the case in terms of time, place, and person; and, what should have been the first step the Pennsylvania Department of Health should have followed? Sources Centers for Disease Control and Prevention (CDC). (2012). Lesson one: Introduction to epidemiology.Principles of epidemiology in public health practice (pp. 1-1:1-20). U.S. Department of Health and HumanServices, Office of Workforce and Career Development.https://www.cdc.gov/csels/dsepd/ss1978/lesson1/section6.htmlBegum, F. (2016). Mapping disease: John Snow and Cholera. https://www.rcseng.ac.uk/library-and-publications/library/blog/mapping-disease-john-snow-and-cholera/Lippi, D., Gotuzzo, E.,
