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A-Level Biology OCR A

Antigens Describe Ways Obtained Vaccines Contents Killed/Inactivated Bacteria

Front Describe 5 ways in which antigens can be obtained for use in vaccines.
Back Contents of vaccine:
  • Killed/inactivated bacteria and viruses
  • Weakened strains of live bacteria/viruses
  • Toxin molecules that have been altered/detoxified
  • Isolated antigens extracted from the pathogen
  • Genetically engineered antigens

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