Correct question:
Which of the following definitions is INCORRECT?
A. pandemic: a disease that affects a large number of people in the world in a short time
B. epidemic: a disease that is endemic across the world
C. endemic: a disease that is constantly present in a population
D. incidence: number of new cases of a disease
Answer:
B. epidemic: a disease that is endemic across the world
Explanation:
A disease or infection is categorized as an epidemic when it affects a relatively large number of members of a population or locality. The spread of epidemic diseases is usually associated with specific conditions such as entry of a new pathogen in the population, contaminated food or water supply, etc. For example, the supply of contaminated water may affect a large number of individuals present in that locality with cholera. In this case, cholera will be an epidemic.
