Anatomy & Physiology Immune #4


A client receives a diphtheria vaccine but there is no laboratory verification. Which type of immunity does this client have based on the current data?


  1. Active
    • Rationale:

      Active immunity occurs when an individual produces antibodies against a pathogen and it is verified by laboratory testing. This type of immunity can be obtained as the result of getting a particular infection, or by being given an immunization against the particular infection.

  2. Passive
    • Rationale:

      Passive immunity occurs when a person gets antibodies with an immunoglobulin of antibodies. In addition, passive immunity is transferred from a mother to a fetus in utero; it is a short lived, or temporary, form of immunity.

  3. Natural
    • Rationale:

      Natural (i.e., innate) immunity does not require previous sensitization to an antigen. The skin is a structure that provides the human body with natural immunity.

  4. Artificial
    • Rationale:

      Artificial immunity is a form of acquired immunity that is produced by the deliberate exposure to an antigen, such as the diphtheria vaccine obtained via immunization.


Immunity is defined as the ability of an organism to resist particular infections or toxins via specific antibodies or white blood cells that are sensitized.


Learning Outcomes

There are four basic types of immunity within the human body. These types of immunity include active immunity, artificial immunity, natural immunity, and passive immunity. Artificial immunity is not acquired in a natural way. An example of this type of immunity is receiving the diphtheria vaccine.

Test Taking Tip

Consider the definition of each type of immunity when determining the correct choice for this question.

Video Rationale