What is an example of artificial passive acquired immunity?

• A. Immunity developed after a viral infection
• B. Immunoglobulin injections during treatment
• C. Antibodies passed during childbirth
• D. Natural recovery from illness

Answer: (B)

Artificial passive acquired immunity refers to the process by which a person is given antibodies from another source rather than developing them through their own immune response. This is commonly achieved through medical interventions, such as immunoglobulin injections, which provide immediate protection against certain pathogens for an individual who may be at high risk or has already been exposed.

In the context of the choices given, immunoglobulin injections represent this form of immunity because they involve the administration of pre-formed antibodies (immunoglobulins) directly to an individual. This can be crucial in situations such as exposure to certain infectious diseases or in immunocompromised patients who cannot mount an adequate immune response on their own. The injected antibodies provide temporary immunity until the body is able to respond on its own or until the antibodies degrade.

The other options describe forms of immunity that do not align with the definition of artificial passive acquired immunity. For example, immunity developed after a viral infection and natural recovery from illness pertain to active immunity, where the individual's own immune system creates antibodies following exposure to a pathogen. Similarly, antibodies passed during childbirth, although important for a newborn's immune defense, describe a natural process of passive immunity rather than an artificial intervention.