An epidemiologist uses the epidemiological triangle to explain the occurrence of disease by looking at the three main components of the model: the host, the environment, and the agent. The PHN understands that the agent could be one of many types except:
A)Biological and chemical.
B)Nutritive.
C)Physical.
D)Ecological.

Question

Quizplus · Accepted Answer

The agent in the epidemiological triangle refers to the factor that causes the disease, which can be biological, chemical, physical, or nutritive. Ecological is not considered an agent type in this context.

An Epidemiologist Uses the Epidemiological Triangle to Explain the Occurrence