The nurse is reviewing a research article that describes the use of the bacille Calmette-Guérin (BCG) vaccine to prevent tuberculosis that was given to individuals who were exposed to leprosy. The individuals did not develop the leprosy. The nurse interprets this as most accurately demonstrating which type of immunity?

Question

Quizplus · Accepted Answer

Cross-immunity refers to a situation in which a person's immunity to one agent provides immunity to a related agent as well. This immunity can be active or passive. Herd immunity describes the immunity level present in a population group. Passive immunity refers to short-term resistance acquired naturally or artificially. Active immunity is long term and can be acquired naturally or artificially.

The Nurse Is Reviewing a Research Article That Describes the Use