Immunity and Vaccines

• How many types of immunity are there?

  Two
• What are the types of Immunity?

  Active and Passive Immunity
• Define Active Immunity

  This is the type of immunity you get when your immune system makes its own antibodies after being stimulated by a pathogen.
• How many types of Active Immunity are there?

  Two
• What are the types of Active Immunity?

  Natural and Artificial Active Immunity
• Define the Natural Active Immunity

  This is when you become immune after catching a disease.
• Define the Artificial Active Immunity

  This is when you become immune after you've been given a vaccination containing a harmless dose of antigen.
• Define Passive Immunity

  This is the type of immunity you get from being given antibodies made by a different organism- (this means) your immune system does not produce any antibodies of its own.
• How many types of Passive Immunity are there?

  Two
• What are the types of Passive Immunity?

  Natural and artificial Passive Immunity
• Define the Natural Passive Immunity

  This is when a baby becomes immune due to the antibodies it receives from its mother, through the Placenta and in breast milk.
• Define the Artificial Passive Immunity

  This is when you become immune after being injected with antibodies against the tetanus toxin, collected from blood donations.
• Outcome of Active immunity and Passive immunity

  Active immunity requires exposure to antigen while Passive immunity doesn't require exposure to antigen.

  Active immunity takes a while for protection to develop while Passive immunity, protection is immediate

  In active immunity, memory cells are produced while in Passive immunity memory cells aren't produced.

  In active immunity, protection is long term (because the antibody is produced after activation of memory cells in response to complementary antigen being present in the body)while in Passive immunity, protection is short term because the antibodies given are broken down.