Video Segment |01:54

Video Segment |01:54

Explains how vaccines work by giving the body immunity and the ability to fight disease and resist infection. Vaccines are made in various ways but all use the strategy of stimulating the immune system and causing it to create antibodies. Cells learn to recognize a pathogen and produce an antibody to fight it. Vaccines are made using a part of the pathogen called an antigen, which doesn’t cause illness but prompts the body to produce antibodies which act against the antigen and learn how to fight the pathogen if the body becomes infected with it. Vaccinations protect entire populations and reduce the chance of disease outbreaks. Vaccines are one of the greatest medical achievements of modern civilization.

©2017 Mazzarella Educational Media| CC| Grade(s)

Related Topics

  • antibody
  • antigen
  • bacteria
  • community immunity
  • immune system
  • infectious disease
  • outbreak
  • pathogens
  • protein
  • t-lymphocytes
  • vaccination

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