Immune System III (revisited in FW3F)

Question 1

What is passive immunity?

Answer 1

When pre-formed antibodies/serum are transferred from an immunized individual to a non-immunized individual

Question 2

Passive immunity is used for ________ protection.

Answer 2

Immediate

Pre-formed components (antibodies/serum) transferred from immunized individual to a non-immunized individual.
Don’t really make memory responses with passive immunity.
This is different from active immunization (results from exposure to foreign antigen).

Question 3

What are two sources of passive immunization?

Answer 3

• NATURAL: mother-to-child via placenta (immunity in first few months to 1 year of life)
• ARTIFICIAL; necessary in
• -> patients who cant mount a response
• -> individuals exposed to deadly toxins (snake bite, etc)
• -> rapidly-progressing infections (rabies)

Question 3

What are the two methods of producing active immunization?

Answer 3

• Natural (arises from infection; not deliberate)

- Artificial (vaccination)

Question 4

Active immunization results from

Answer 4

an individual being exposed to a foreign antigen (in the case of adaptive immunity?)

Question 5

What is the purpose of vaccination?

Answer 5

To produce memory response and specificity.