Final answer:
The three key factors of disease as visualized by Gordis are Host, Agent, and Environment, which form the epidemiological triad, crucial for understanding disease dynamics in a population.
Step-by-step explanation:
What are Gordis' three key factors of disease typically visualized as? The three key factors of disease according to Gordis are commonly visualized as A) Host, Agent, and Environment. These components form the epidemiological triad and are critical for understanding the dynamics of disease in a population. The host refers to the organism harboring the disease, the agent is the cause of the disease (i.e., bacteria, viruses, parasites), and the environment includes all the external factors that can influence the presence of the agent and the susceptibility of the host.
The periods of disease, such as the incubation and illness periods are separate concepts that describe the stages a disease may pass through in an individual. It's important to differentiate between these stages and the three key factors of disease. While the periods of disease describe the progression of an illness in an individual, the epidemiological triad examines how diseases circulate within a population at large.