immunity

• active immunity - when your immune system makes its own antibodies after being stimulated by an antigen
• natural active immunity - when you become immune after catching a disease
• artificial active immunity - when you become immune after being given an vaccination containing a dose of antigen
• passive immunity - immunity you get from being given antibodies made by a different organism
• natural passive immunity - when a baby becomes immune due to antibodies it receives from its mother, through the placenta and breast milk
• artificial passive immunity - becoming immune after being injected with antibodies from another organism