Which term describes a disease that is constantly present in a population?

Which term describes a disease that is constantly present in a population?

• A. Outbreak
• B. Zoonotic
• C. Sporadic
• D. Endemic

Answer: (D)

Endemic means a disease is constantly present in a population or area, with a baseline level of cases that persists over time. It indicates a stable, ongoing presence rather than a one-time spike. This contrasts with an outbreak, which is a sudden increase in cases above what’s expected; sporadic, which means occurrences are irregular and infrequent; and zoonotic, which describes the source or transmission from animals rather than how common the disease is in people. So when a health condition is described as being consistently present in a population, it’s endemically established.

Endemic means a disease is constantly present in a population or area, with a baseline level of cases that persists over time. It indicates a stable, ongoing presence rather than a one-time spike. This contrasts with an outbreak, which is a sudden increase in cases above what’s expected; sporadic, which means occurrences are irregular and infrequent; and zoonotic, which describes the source or transmission from animals rather than how common the disease is in people. So when a health condition is described as being consistently present in a population, it’s endemically established.