What is epidemiological triad?

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 the epidemiologic triad quizlet?

Agent, host, environment. Agent. Factor whose presence causes disease.

What is the best definition of 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).

What is importance of epidemiological triad?

Used as an epidemiological tool, the triad is utilized to determine all factors internal and external to the host (the human), making them more susceptible to the agent (the “germ”), and has been used for decades to determine specific factors contributing to disease.

What is epidemiology triad Slideshare?

1. EPIDEMIOLOGICAL TRIAD ENVIRONMENT AGENT HOST. BIOLOGICAL AGENTS • VIRUS • BACTERIA • PROTOZOVA • FUNGUS CHARACTERISTICS: – Infectivity – Pathogenicity – virulence. CHEMICAL AGENTS • ENDOGENOUS • EXOGENOUS.

What are the three factors of the epidemiological triangle quizlet?

The epidemiological Triangle model includes three key elements: the agent, host, and environment.

What part of the epidemiological triad does the infectious agent represent?

Agent. The agent within the epidemiological triad is microbes that cause disease to occur. When considering infectious diseases, the agent is an external microorganism that needs to be present in order for the disease to occur.

What is epidemiology example?

Some examples of topics examined through epidemiology include as high blood pressure, mental illness and obesity. Therefore, this epidemiology is based upon how the pattern of the disease causes change in the function of human beings.

Who defined epidemiology?

Lilienfeld based his work on 23 existing definitions of epidemiology and proposed the following definition [1]: “Epidemiology is a method of reasoning about disease that deals with biological inference derived from observations of disease phenomena in population groups”.

Why is the epidemiological triangle important?

The Epidemiologic Triangle The Epidemiologic Triangle is a model that scientists have developed for studying health problems. It can help your students understand infectious diseases and how they spread.

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