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A-Level Biology OCR A

Vaccination Immune Response Triggered Describe Results Artificial Active

The summary explains vaccination triggers a primary immune response, producing antibodies and memory cells, preparing the body for a faster, stronger secondary response to the actual pathogen.

O resumo explica que a vacinação desencadeia uma resposta imune primária, gerando anticorpos e células de memória, preparando o corpo para uma resposta imune secundária mais rápida e eficaz contra o patógeno real.

Front Describe how vaccination results in artificial active immunity.
Back How vaccination works:
  • Small amount of safe antigen-containing vaccine is injected into blood
  • Primary immune response triggered by foreign antigens and body produces antiodies and memory cells as if infected by live pathogen 
  • If in contact with that pathogen, but live, secondary immune response triggered and pathogen destroyed rapidly before suffering symptoms of disease

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