A female client develops a fungal vaginal infection after being treated with antibiotics for strep throat. Which of the following components of the epidemiological triangle is primarily responsible?
a. Agent
b. Environment
c. Host
d. Interaction of agent and environment
ANS: C
Infectious diseases are the result of interaction among the human host, an infectious agent, and the environment, which surrounds the human host and where transmission is occurring. This interaction is pictured in the epidemiological triad of agent, host, and environment also discussed in Chapter 5. The antibiotic therapy eliminated a specific pathological agent, but it also may alter the balance of normally occurring organisms in the woman's body, which caused a change in the vaginal environment, allowing normally present fungi to proliferate, resulting in a yeast infection.
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