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GCSE Biology Paper 1 (9-1 Exams)

Vaccinations Pathogens White Blood Antibodies Work Involve Injecting

Vaccinations work by introducing dead or inactive pathogens with antigens, prompting white blood cells to produce antibodies and grant immunity.

Vaccinations involve injecting dead or inactive pathogens with antigens, which stimulates the white blood cells to produce antibodies, conferring immunity.

Front How do vaccinations work?
Back
  • Vaccinations involve injecting small amountds of dead or inactive pathogens
  • These carry antigens, which cause your white blood cell to produce antibodies to attack them - even though the pathogen is harmless
  • If live pathogens of the same type then appear at a later date, the white blood cells can rapidly mass-produce antibodies to kill off the pathogen. 
  • The vaccinated person is now immune to that pathogen and won't get ill.

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