Summary
Active immunity is made by your own response; passive immunity is received as ready-made antibodies.
In depth
Active natural: infection. Active artificial: vaccination. Passive natural: maternal antibodies via placenta and milk. Passive artificial: antiserum or antivenom. Passive immunity is immediate but temporary.
Passive immunity gives immediate help but no memory. Immune globulins treat tetanus, rabies and hepatitis exposures. Monoclonals are a modern form.
Common mistake: breast milk antibodies give passive, not active, immunity.
Frequently asked questions
What is Active and Passive Immunity?
Active immunity is made by your own response; passive immunity is received as ready-made antibodies.
Which area of biology covers Active and Passive Immunity, and how advanced is it?
Active and Passive Immunity is one of the 52 topics in Immunology & Disease. It is rated Intermediate, so it suits learners who already know the core vocabulary. Related topics in this area include Vaccines, Antibody Classes, Primary and Secondary Response.
Can you give an example of Active and Passive Immunity?
Rabies post-exposure includes immunoglobulin plus vaccine.
What should I learn before Active and Passive Immunity?
Work through the Beginner topics in Immunology & Disease first, such as Immune System, Viruses, Innate Immunity, then return to Active and Passive Immunity. Intermediate topics assume the Beginner vocabulary.
What topics are related to Active and Passive Immunity?
The closest topics to Active and Passive Immunity are Vaccines, Antibody Classes, Primary and Secondary Response, mRNA Vaccines. Comparing them side by side is a good way to see how the ideas connect.
How can I check that I understand Active and Passive Immunity?
Read the summary and the in-depth section, then use the quick check on the interactive lesson for Active and Passive Immunity. To practise the whole of Immunology & Disease, use the Immunology & Disease quiz.
How is Active and Passive Immunity different from Vaccines?
Active and Passive Immunity: Active immunity is made by your own response; passive immunity is received as ready-made antibodies. Vaccines: Preparations that train the immune system to recognise a pathogen without causing the disease. Read both side by side and note what each one explains.
What is a common mistake about Active and Passive Immunity?
Breast milk antibodies give passive, not active, immunity.
How should I study Active and Passive Immunity step by step?
First, read the summary and write the definition in your own words. Second, read the in-depth section and note any example. Third, compare it with Vaccines and explain the difference aloud. Finally, take the Immunology & Disease quiz and come back to this page for any question you miss.