Immunity

• Active Immunity - Your body creates an army of soldiers (antibodies) to fight off a specific alien invader, can happen naturally by infection or artificially by immunisations (an inactive version of an infectious agent), creating antibodies stores plans for them in case you are re-infected; if antigens are encountered and antibodies produced, memory cells (long-lived) develop, and secondary response is available
• Passive Immunity - You can "rent" armies of antibodies to fight a specific antigens by getting them from someone who is already producing them, it will help you one, but won’t make plans for the antibodies in the future; antigens are not encountered by the immune system as immediate and temporary protection so no memory cells or secondary response available
• Comparing different types of immunity: Natural Active Immunity, Artificial Active Immunity, Natural Passive Immunity, and Artificial Passive Immunity

  A) infection

  B) vaccination

  C) stimulus

  D) antigen

  E) stimulus

  F) antibodies

  G) antibodies

  H) immune

  I) antibodies

  J) foetus

  K) placenta

  L) mother's milk

  M) antibodies

  N) vaccination

  O) yes

  P) yes

  Q) no

  R) no

  S) long-lived

  T) long-lived

  U) short-lived

  V) short-lived