Module 12: Vaccines

• what are the 3 types of vaccines?

  1. live attenuated pathogen
  2. inactivated pathogen
  3. component
• live vaccines:

  • replicating strain with defects
  • targets immune response in T and B cells, exposure to virulence factors
• inactivated vaccines:

  • pathogen doesn't replicate
  • immune system exposed to antigens
• what are the types of component vaccines?

  • subunit
  • toxoid
  • polysaccharide
• component vaccines: virulence factors raise immune response