Webster's New World Medical Dictionary

immunization, children’s
See 
children’s
immunizations.
immunization, flu
See 
influenza vaccine.
immunization, German measles
See 
MMR.
immunization, H. flu
See 
Haemophilus
influenzae type B immunization.
immunization, HIB
See 
Haemophilus influen-
zae type B immunization.
immunization, infectious hepatitis
See 
hepa-
titis A immunization.
immunization, measles
See 
MMR.
immunization, mumps
See 
MMR.
immunization, serum hepatitis
See 
hepatitis
B immunization.
immunization, varicella
See 
chickenpox
immunization.
immunocompetent
Able to develop an immune
response. An immunocompetent body is able to 
recognize antigens and act against them. Immuno-
competent is the opposite of immunodeficient.
immunocompromised
Having an immune sys-
tem that has been impaired by disease or medical
treatment.
immunodeficiency
The inability to form a nor-
mal immune response. Immunodeficiency can be
due to a genetic disease or it can be acquired, as in
AIDS.
immunodeficient
Lacking immunity, and so
being susceptible to infection. Immunodeficient is
the opposite of immunocompetent.
immunodepression
See 
immunosuppression.
immunogenetics
The genetics (pattern of inher-
itance) of the immune response. For example,
immunogenetics includes the study of Rh, ABO, and
other blood groups.
immunoglobulin A
A major class of
immunoglobulins (antibodies) found in serum and
external body secretions such as saliva, tears, and
sweat, as well as in the gastrointestinal, respiratory,
and genitourinary tracts. Abbreviated IgA. About 10
percent to 15 percent of the antibodies present in
the body are IgA antibodies.