Unit 5: Immunity and vaccination

Immunity is the resistance of an organism to infection, disease, or other unwanted biological invasion.

Vaccination is the administration of antigenic material (the vaccine) to produce immunity to a disease.

At the end of this session you will be able to:

  • Describe how the immune system works in farm animals
  • Define the terms 'induced' and 'innate' immunity
  • Explain the difference between the animal's humoral response and cell mediated response to infection
  • Explain how vaccines vary in their mechanisms
  • Give examples of common vaccines used on farms.
notes interactive

Interactive activity


Video clips

  • Video clip: Husk oral vaccination (The first of three video clips)
  • Video clip: Subcutaneous (The second of three video clips)
  • Video clip: Injecting vaccination (The third of three video clips)
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