Public health and safety depend heavily on epidemiology. Analyzing the causes and spread of illnesses across populations is a skill that those who want to work in this sector are trained in.
They must gain knowledge of the procedures necessary to track a disease back to its source, determine the scope of the transmission, and strive to stop any breakouts that may turn into an epidemic or pandemic.
An epidemiologist employs experiments, surveys, risk assessment, and statistical analysis to identify the causes causing the spread of a disease.
Epidemiology is derived from the Greek terms epi, demos, and logos, which respectively mean on, people, and the study of.
Therefore, by definition, an epidemiologist is a person who researches populations and individuals.
An epidemiologist studies the causes and effects of illness on a community or population, whereas a medical practitioner may concentrate on treating a patient.
The term "disease detective" is used by the Centers for Disease Control and Prevention (CDC) to characterise the job of an epidemiology.
This phrase sums up epidemiologists' exploratory approach to understanding and analysing infectious diseases.