Types of Immunity

• Active Immunity - the body learns to make its own antibodies by exposure to an antigen. E.g: vaccines, catch and recover from a pathogen
• A benefit of active immunity is it's long term protection from disease
• A drawback of active immunity is protection isn't instant (4-5 day delay)
• Passive Immunity - Given antibodies by someone else. E.g: breastfeeding/suckling after birth, placenta (unborn babies), antibody serum
• A drawback of passive immunity is protection is only short term
• A benefit of passive immunity is it provides immediate protection from pathogens
• Artificial active immunity - vaccines
• natural active immunity - catch and recover from a pathogen
• Artificial passive immunity - antibody serums
• What is artificial passive immunity in biology?

  An immediate, but short-term immunization

  
• The immune system has two main types of cells involved in its response to foreign substances (antigens): B lymphocytes and T lymphocytes.