infectious disease epidemiologist definition
Epidemiology is the study of the patterns, causes, and effects of health and disease conditions in defined populations.It is the cornerstone of public health, and shapes policy decisions and evidence-based practice by identifying risk factors for disease and targets for preventive healthcare.he term epidemiology appears to have first been used to describe the study of epidemics in 1802 by the Spanish physician Villalba in Epidemiologia EpidemiologÃ­a. Espanola espaÃ±ola epidemiologists also study the interaction of diseases in, a population a condition known as. a syndemic