Immunology
- the study of physiological mechanism humans and other animals use to defend their bodies from invasion by
other organisms
Immune
- originally used to describe those who had surived a disease and did not suffer from it when faced with it again
Infectious disease
- disease cause by a microorganism
Immune system
- the collection of cells and physiological mechanisms the human body utilizes to fight infections
Vaccination; immunization
- procedure by which severe disease is prevented by prior exposure to the infectious agent in a form that cannot
cause disease