What are the different types of acquired immunity and their mechanisms?
Understand the Problem
The question is exploring the topic of acquired immunity, particularly focusing on the definitions and mechanisms of cell-mediated and humoral immunity as well as the types of immunity. It appears to be an introductory or educational query about immunology.
Answer
Active and passive immunity: active involves immune response development; passive includes antibody transfer.
Acquired immunity includes active and passive types. Active immunity results from exposure to a pathogen or vaccination, stimulating the body's immune response. Passive immunity is received through antibodies from another source, such as mother to child via the placenta or breast milk.
Answer for screen readers
Acquired immunity includes active and passive types. Active immunity results from exposure to a pathogen or vaccination, stimulating the body's immune response. Passive immunity is received through antibodies from another source, such as mother to child via the placenta or breast milk.
More Information
Active immunity usually provides long-term protection, as the body's immune response is thoroughly stimulated. Passive immunity, however, is temporary since it does not involve the body's own immune mechanisms.
Tips
A common mistake is confusing active and passive immunity; remember, active involves the body's response, and passive is antibody transfer.
Sources
- Acquired Immunity - Merck Manual Consumer Version - merckmanuals.com
- Types of Immunity | Children's Hospital of Philadelphia - chop.edu
- Immunity Types | Vaccines & Immunizations - CDC - cdc.gov
