Science concerned with the study of disease in a general population Determination of the incidence (rate of occurrence) and distribution of a particular disease (as by age, sex or occupation) which may provide information about the cause of the disease
The study of the distribution and dynamics of diseases and injuries in human populations The two main types of epidemiological studies of chronic disease are cohort (follow-up) studies and case-control (retrospective) studies
The study of the incidence, distribution and determinants of an infection, disease or other health-related event in a population Epidemiology can be thought of in terms of who, where, when, what, and why That is, who has the infection/disease, where are they located geographically and in relation to each other, when is the infection/disease occurring, what is the cause, and why did it occur
the branch of public health that deals with the study of the causes, distribution, and control of disease in populations
the branch of medicine dealing with the transmission and control of disease throughout populations
the study of the way diseases spread, and how to control them. Study of disease distribution in populations. It focuses on groups rather than individuals and often takes a historical perspective. Descriptive epidemiology surveys a population to see what segments (e.g., age, sex, ethnic group, occupation) are affected by a disorder, follows changes or variations in its incidence or mortality over time and in different locations, and helps identify syndromes or suggest associations with risk factors. Analytic epidemiology conducts studies to test the conclusions of descriptive surveys or laboratory observations. Epidemiologic data on diseases is used to find those at high risk, identify causes and take preventive measures, and plan new health services
The study of the various factorsinfluencing the occurrence, distribution, prevention and control of disease, injury and other health-related events in a defined human population
The science of disease in populations (Vanderplank, 1963); the study of the development and spread of disease and of the factors affecting these processes
The study of diseases as they affect populations, including the distribution of disease or other health-related states and events in human populations, the factors (e g , age, sex, occupation, and economic status) that influence this distribution, and the application of this study to control health problems (Source: Carbon Dioxide Information Analysis Center, 1990)
Scientific discipline studying the incidence, distribution, and control of disease in a population Includes the study of factors affecting the progress of an illness, and, in the case of many chronic diseases, their natural history
1 The study of the interrelationships between a given pathogen, the environment, and groups or populations of the relevant hosts (16) 2 The study of epidemics (20)
The study of the distribution and determinants of health-related states or events in specified populations, and the application of this study to control of health problems
A field of medical science that studies the incidence, distribution, and control of disease in a population This information is often used to determine causes and methods of controlling diseases
the branch of medical science dealing with the transmission and control of disease
The study of the frequency and distribution of disease in human population Epidemiologists are thought to be important chiefly in defense against parasitic infections; they are activated by the lymphocytes of the adaptive immune response
The study of patterns of disease in a population Second generation hepatitis C antibody tests: These were developed after 1992 and search for more specific 'signs' of the hepatitis C virus Because these tests identify more parts of the antibody, they are more sensitive and specific than the original first generation tests
An investigator who studies the occurrence of disease or other health-related conditions or events in defined populations The control of disease in populations is often also considered to be a task for the epidemiologist, especially in speaking of certain specialized fields, such as malaria epidemiology See also clinical epidemiologist