5.6 Vaccination Flashcards
what is immunity?
the ability to produce an immune response quick enough that the pathogen doesn’t cause any harm to the body cells
types of immunity
passive
active
types of active immunity
natural
artificial
what is passive immunity?
the introduction of antibodies into individuals from outside sources
example of passive immunity
breast feed baby being given antibodies from mother
what is active immunity?
the stimulation of production of antibodies by the individuals’ own immune system
what is natural active immunity?
resulted from individual being infected with a pathogen naturally and producing antibodies
what is artificial active immunity?
inducing immune response to the body in order to produce antibodies
example of artificial. active immunity
vaccination
how do vaccines work?
- contains antigens from pathogen
- phagocyte presents antigens
- th cell with complimentary receptors binds
- stimulates b cells with complimentary antibodies to divide
- produces plasma cells and memory cells
what do plasma cells do during vaccination?
produce large number of identical antibodies specific to the antigen introduced
what do memory cells do during vaccination?
upon reinfection
they divide into plasma cells
- produce antibodies at faster rate
- produce antibodies at greater abundance
(4) features of primary immune response
production of:
- plasma cells = antibodies
- short lived
- a/bods remain in blood for a bit longer
- slow process
features of secondary immune response(4)
upon reinfection
- memory cells recognise antigen
- divide into plasma cells and more memory cells
- release larger number of a/bods and quicker
- reduce damage to cells
differences of active immune response and passive immune response (4)
active
- involves memory cells
- produces a/bods from plasma cells
- long term, a/bod produces in response to antigen
- slower
passive
- doesn’t involve memory cells
- involves a/bods being introduced
- short term, a/bods given is broken down
- faster acting
