immunodeficiency
(noun)
 A depletion in the body's natural immune system, or in some component of it.
Examples of immunodeficiency in the following topics:
- 
Immunodeficiencies
- Immunodeficiency may also decrease cancer immunosurveillance.
 - Most cases of immunodeficiency are acquired (secondary) but some people are born with a defective immune system, or primary immunodeficiency.
 - A person with an immunodeficiency of any kind is said to be immunocompromised.
 - Primary Immunodeficiency is also known as congenital immunodeficiency.
 - Immunodeficiency is also the hallmark of acquired immunodeficiency syndrome (AIDS), caused by the human immunodeficiency virus (HIV).
 
 - 
Secondary Immunodeficiency Diseases
- Immunodeficiency may also decrease cancer immunosurveillance.
 - Most cases of immunodeficiency are acquired ("secondary") but some people are born with defects in their immune system, or primary immunodeficiency.
 - A person who has an immunodeficiency of any kind is said to be immunocompromised.
 - Primary Immunodeficiency is also known as "congenital immunodeficiencies. " Many of these disorders are hereditary and are autosomal recessive or X-linked.
 - Immunodeficiency is also the hallmark of acquired immunodeficiency syndrome (AIDS) , caused by the human immunodeficiency virus (HIV).
 
 - 
Immunodeficiency
- Immunodeficiency occurs when the immune system cannot appropriately respond to infections.
 - Immunodeficiency can be acquired as a result of infection with certain pathogens (such as HIV), chemical exposure (including certain medical treatments), malnutrition, or, possibly, by extreme stress.
 - Dozens of genetic disorders result in immunodeficiencies, including Severe Combined Immunodeficiency (SCID), bare lymphocyte syndrome, and MHC II deficiencies.
 - Rarely, primary immunodeficiencies that are present from birth may occur.
 - Human immunodeficiency virus infection / acquired immunodeficiency syndrome (HIV/AIDS), is a disease of the human immune system caused by infection with human immunodeficiency virus (HIV) .
 
 - 
Primary Immunodeficiency Diseases
- Primary immunodeficiencies are disorders in which part of the body's immune system is missing, or does not function properly.
 - The precise symptoms of a primary immunodeficiency depend on the type of defect.
 - The main members are various types of severe combined immunodeficiency (SCID).
 - The treatment of primary immunodeficiencies depends foremost on the nature of the abnormality.
 - Describe primary immunodeficiency disorders and explain what treatment options are available
 
 - 
Burkitt's Lymphoma
- Immunodeficiency-associated: Immunodeficiency-associated Burkitt lymphoma is usually associated with HIV infection or occurs in the setting of post-transplant patients who are taking immunosuppressive drugs.
 - Immunodeficiency-associated Burkitt lymphoma may demonstrate more plasmacytic appearance or more pleomorphism, but these features are not specific.
 - Distinguish between the three variants of Burkitt's lymphoma: endemic, sporadic and immunodeficiency-associated
 
 - 
HIV and AIDS
- Human immunodeficiency virus infection/acquired immunodeficiency syndrome is a disease of the human immune system caused by HIV.
 - Human immunodeficiency virus infection / acquired immunodeficiency syndrome (HIV/AIDS) is a disease of the human immune system caused by the human immunodeficiency virus (HIV ).
 - Describe the mode of transmission, mechanisms of infection, treatment options, and WHO and CDC classifications for the human immunodeficiency virus (HIV)
 
 - 
The Future of Diagnostic Immunology
- Immunologists work in many different disease areas today that include allergy, autoimmunity, immunodeficiency, transplantation, and cancer.
 - The vaccines currently used primarily generate an antibody response, which is able to attack free-moving pathogens, but is unable to fight bacteria and viruses, such as human immunodeficiency virus (HIV).
 
 - 
Double-Stranded RNA Viruses: Retroviruses
- A notable retrovirus is Human immunodeficiency virus (HIV), the virus responsible for acquired immunodeficiency syndrome (AIDS).
 
 - 
Primary and Secondary Antibody Responses
- Immunodeficiency occurs when the immune system is less active than normal, resulting in recurring and life-threatening infections.
 - In humans, immunodeficiency can either be the result of a genetic disease such as severe combined immunodeficiency, acquired conditions such as HIV/AIDS, or the use of immunosuppressive medication.
 
 - 
Thymus
- Surprisingly, removal of the thymus does not result in a T cell immunodeficiency.
 - When it is removed late in life, immunodeficiency is uncommon because of its activity early on, though it will cause severe immunodeficiency if removed early in life.