Immunology is concerned with immunity and all aspects
of the body's ability to resist infection and diseases
caused by pathogens (disease-causing organisms,
which are usually micro-organisms). Examples of
disease-causing organisms include viruses, bacteria,
protozoa or even larger parasites.
Note the relationship between Immunology
(concerning the body's ability to resist infection
and disease) and Pathology
(the study of disease processes including their
causes and characteristics.).
More about Immunology:
Immunology may be further complicated by the situations
in which some people develop immune responses against
their own proteins (and other molecules) in
autoimmunity and against our own aberrant cells
in tumor immunity. This type of immune response
is also included in the subject area of immunology.
The adjective used to refer to immunology is "immunological".