Infection and Response

• What is the primary purpose of vaccinations?

  To protect individuals and communities from diseases
• How do vaccines stimulate the immune system?

  By containing weakened or inactivated pathogens
• What do antibodies target in the immune response?

  Pathogens that cause disease
• What are memory cells and their role in immunity?

  They provide long-term immunity after exposure
• What happens when the body encounters the same pathogen again?

  Memory cells quickly produce antibodies
• What is herd immunity?

  Protection of individuals through widespread vaccination
• How does herd immunity benefit those who cannot be vaccinated?

  It reduces disease spread in the community