Question

Epidemiological triad refers to _____________________.

• A. Host, disease and environment
• B. Host, agent and environment
• C. Host, agent and disease
• D. Agent, disease and environment

Answer 1

Answer: (B)

Host, agent and environment

Among many epidemiologic triad or triangle, the traditional model for an infectious disease (The triad ) consists of an external agent, a susceptible host, and an environment. So, the correct option B ( Host, agent, and environment )