Vaccination

• Vaccination involves introducing small quantities of dead or inactive forms of a pathogen into the body to stimulate the white blood cells to produce antibodies.

  If the same pathogen re-enters the body, the white blood cells respond quickly to produce the correct antibodies, preventing infection
• PROS of Vaccination:

  • helped to control lots of diseases that were once common in the UK
  • Epidemics can be prevented if a large part of the population is vaccinated
• CONS of vaccination:

  • Don't always work
  • May cause a bad reaction