Among the simplest of these is the epidemiologic triad or triangle, the traditional model for infectious disease. The triad consists of an external agent, a susceptible host, and an environment that brings the host and agent together.
What are the 3 main elements of the definition of epidemiology?
Epidemiology includes assessment of the distribution (including describing demographic characteristics of an affected population), determinants (including a study of possible risk factors), and the application to control health problems (such as closing a restaurant).
What are the 3 divisions of epidemiology?
The Division of Epidemiology and Clinical Applications (DECA) has three main functions: research, education, and consultation . Research is the dominant function.
What are the epidemiologic factors?
Personal characteristics include demographic factors which may be related to risk of illness, injury , or disability such as age, sex, marital status, and socioeconomic status, as well as behaviors and environmental exposures.
What are the three factors of the epidemiological triangle quizlet?
The epidemiologic triangle is made up of three parts: agent, host and environment .
What is the best definition for the epidemiological triangle?
What Is the Epidemiologic Triangle? The Epidemiologic Triangle, sometimes referred to as the Epidemiologic Triad, is a tool that scientists use for addressing the three components that contribute to the spread of disease : an external agent, a susceptible host and an environment that brings the agent and host together.
Which is the best example of the epidemiological triangle?
Malaria provides a good example of the epidemiological triangle.
What is the epidemiological triangle?
A number of models of disease causation have been proposed. Among the simplest of these is the epidemiologic triad or triangle, the traditional model for infectious disease . The triad consists of an external agent, a susceptible host, and an environment that brings the host and agent together.
What is an example of epidemiology?
The term epidemiology is now widely applied to cover the description and causation of not only epidemic, infectious disease, but of disease in general, including related conditions. Some examples of topics examined through epidemiology include as high blood pressure, mental illness and obesity .
What are the epidemiological methods?
The three major epidemiologic techniques are descriptive, analytic, and experimental . Although all three can be used in investigating the occurrence of disease, the method used most is descriptive epidemiology.
What are the four methods of epidemiology?
Epidemiological investigations can be grouped into four broad categories: Observational epidemiology, experimental epidemiology, natural experiments, and Theoretical epidemiology . Several types study designs and measures of relationship are used in these investigations.
What is the best definition for epidemiology?
By definition, epidemiology is the study (scientific, systematic, and data-driven) of the distribution (frequency, pattern) and determinants (causes, risk factors) of health-related states and events (not just diseases) in specified populations (neighborhood, school, city, state, country, global).
Which of the following is a key characteristic of epidemiology?
A key feature of epidemiology is the measurement of disease outcomes in relation to a population at risk . The population at risk is the group of people, healthy or sick, who would be counted as cases if they had the disease being studied.
What are the 3 types of risk factors?
- Major risk factors – Research has shown that these factors significantly increase the risk of heart and blood vessel (cardiovascular) disease.
- Modifiable risk factors – Some major risk factors can be modified, treated or controlled through medications or lifestyle change.
What are the 3 factors that cause disease?
- Bacteria. These one-cell organisms are responsible for illnesses such as strep throat, urinary tract infections and tuberculosis.
- Viruses. Even smaller than bacteria, viruses cause a multitude of diseases ranging from the common cold to AIDS.
- Fungi. ...
- Parasites.
What are etiological factors?
The etiology of CP is very diverse and multifactorial. The causes are congenital, genetic, inflammatory, infectious, anoxic, traumatic, and metabolic . The injury to the developing brain may be prenatal, natal, or postnatal [40].
