Vaccination

• What is the purpose of vaccinations?

  To make an individual immune to a certain disease
• What is herd immunity?

  It is when a large proportion of the population is immunized, reducing the spread of the pathogen
• What is the main advantage of vaccination?

  They have eradicated many diseases and reduced occurrences
• What is a disadvantage of vaccination?

  They are not always effective in providing immunity
• How can epidemics be prevented through vaccinations?

  Herd immunity
• What is a disadvantage of vaccination?


  Bad reactions can occur in response to vaccines
• How do vaccines work?

  Vaccines allow a dead or altered form of the disease-causing pathogen, which contain a specific antigen, to be introduced into the body. This causes the immune system, specifically the white blood cells, to produce complementary antibodies. The antibodies target the antigen and attach themselves to it in order to create memory cells. These will quickly respond to the antigen if it is encountered again.