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The aims of epidemiology are to prevent and reverse negative health outcomes, and the uses of epidemiology are most important for communities that experience a lot of poverty or instability. Researchers achieve the functions of epidemiology by using the Five Ws: Who, What, When, Where, and Why.

Responsibilities for Epidemiologist Analyze data and find conclusions. Create a plan of action for potential health crises. Create reports detailing potential threats. Give presentations to policy makers. Communicate with policy makers on public health. Manage multiple projects at once.

Key Takeaways: 01Epidemiology is the study of disease patterns and how they spread. 02Epidemiologists investigate outbreaks and epidemics. 03Epidemiology plays a crucial role in public health planning. 04Epidemiologists use various study designs to gather data. 05Epidemiology is vital for identifying risk factors.

Epidemiology utilizes an organized approach to problem solving by: (1) confirming the existence of an epidemic and verifying the diagnosis; (2) developing a case definition and collating data on cases; (3) analyzing data by time, place, and person; (4) developing a hypothesis; (5) conducting further studies if

Defining the Term. The word epidemiology comes from three Greek words: epi (on or upon), demos (people), logos (the study of). The word has its roots in the study of what befalls a population.

The word epidemiology is based on the Greek words: epi prefix meaning on, upon, or befall. demos root meaning the people.

Please note the three components (3Ds) common to the definition of epidemiology: disease frequency, distribution and determinants.

Epidemiologists are public health workers who investigate patterns and causes of disease and injury. They seek to reduce the risk and occurrence of negative health outcomes through research, community education and health policy.