Immunity: Active vs. Passive Introduction to Immunity Immunity is the body's disease-causing organisms (pathogens). There are two p

What is immunity?

Immunity is the body's defense against disease-causing organisms (pathogens).

What are the two primary ways to develop immunity?

Active Immunity and Passive Immunity.

What is Active Immunity?

Active immunity provides long-term protection against a disease by the body producing its own antibodies.

How can Active Immunity be acquired?

Active immunity can be acquired through Natural Active Immunity or Artificial Active Immunity.

What is Natural Active Immunity?

Natural Active Immunity occurs when an individual is exposed to a disease and their body produces its own antibodies.

What is Artificial Active Immunity?

Artificial Active Immunity is achieved through immunization or vaccination, where the body produces its own antibodies in response to a vaccine.

What are the types of vaccines?

Vaccines can be live but weakened pathogens, killed pathogens, or toxins/parts of pathogens.

What diseases are commonly targeted by artificial active immunity?

Diseases include tuberculosis, measles, polio, and meningitis.

What is Passive Immunity?

Passive immunity offers temporary protection against a disease by receiving pre-made antibodies from an external source.

How can Passive Immunity be acquired?

Passive immunity can be acquired through Natural Passive Immunity or Artificial Passive Immunity.

What is Natural Passive Immunity?

Natural Passive Immunity is when babies receive antibodies from their mothers through the placenta or breast milk.

What is Artificial Passive Immunity?

Artificial Passive Immunity involves the injection of antibodies produced by another mammal.

What is an example of Artificial Passive Immunity?

An example is the injection of horse antibodies into a victim of snakebite.

What are memory cells?

Memory cells are not produced in passive immunity, leading to short-term protection.

How does passive immunity support breastfed infants?

Passive immunity provides temporary immunity to infants until their own immune system is sufficiently developed.

Why is active immunity long-lasting?

Active immunity is long-lasting because it involves the body producing its own antibodies.