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Adaptive Immunity: Lecture 6 (Naturally Acquired Passive Immunity (when…
Adaptive Immunity: Lecture 6
Natural Acquired Active Immunity
responds to exposure of a pathogen or environment antigens by mounting specific immune response
body's always naturally engaged in own protection
immunological memory
memory your body's immune system has to remember different disease and what control's them
allows rapid and powerful and often provides with complete protection
Naturally Acquired Passive Immunity
when body isn't actively producing antibodies
newborn's posses cells and tissues needed to mount an immune response and respond slowly
if only use active type the babies might die before response was an accurate enough to fight pathogen
in womb babies receive IgG molecules from mother blood and after birth get IgA molecules through breast milk to protect
with both immunity it provides baby with antibodies to protect
Artificial Acquired Active Immunity
physician induce into pts by introducing antigens in form of vaccine
pt body mounts active response against foreign molecules
use memory with vaccines to have increase protection
Artificial Acquired Passive Immunity
active may be too slow against rattlesnake venom so HCW harvest antibodies for specific toxins and pathogens that are fast and deadly for system
acquire by getting blood of immune humans or animals
physicians then inject antisera or antitoxins into infected person to provide a short but immediate relief
Active v. Passive
active responses whether natural or artificial induced are advantaged because of immunological memory and protection against further infection
passive responses, individual are provided fully formed antigens have advantages of speed but do not have memory because B and T lymphocytes are not activated