Understanding the Epidemiologic Triangle

Front

What are the three major factors in the epidemiologic triangle?

Back

Agent, host, and environment

Front

In the context of the epidemiologic triangle, what does the term "host" refer to?

Back

A person or animal that harbours an infectious agent

Front

What best describes the "environment" in the epidemiologic triangle?

Back

The domain external to the individual human host where agents may exist

Front

What is an "agent" in the context of the epidemiologic triangle?

Back

A factor such as a microorganism or chemical substance that causes disease

Front

Which of the following is NOT a component of the epidemiologic triangle? Host, Agent, Vector, Environment

Back

Vector

Front

How can the epidemiologic triangle be applied outside of infectious disease epidemiology?

Back

It provides a framework for organising the causality of other types of environmental problems

Front

In epidemiology, what does the term "infectious agent" refer to?

Back

A microorganism or pathogen that causes disease

Front

Example of an "agent" in the epidemiologic triangle:

Back

A virus

Front

In the epidemiologic triangle, which factor is described as "all that which is external to the individual human host"?

Back

Environment

Front

What role does the "host" play in the epidemiologic triangle?

Back

It provides subsistence or lodgement to an infectious agent