Primary or congenital immunodeficiencies are genetic and are not preventable by avoidance of exposures or by dietary measures. However, someone with a congenital immunodeficiency disorder might want to consider getting genetic counseling before having children in order to find out if there is a chance they will pass the defect on to their children.
Some of the infections associated with acquired immunodeficiency can be prevented or treated before they cause problems. For example, there are effective treatments for tuberculosis and most bacterial and fungal infections. HIV infection can be prevented by practicing safe sex (e.g. using a condom) and by not using illegal intravenous drugs. These are the primary routes of transmitting the virus.
If a child has been diagnosed with an immunodeficiency disorder, the parents may be instructed to refrain from having normal childhood vaccinations that contain live viruses, since even weakened versions of the virus may cause serious disease. In some cases, the immuno-deficient child needs to be encouraged to wear a mask when in public or around family members who are sick in order to reduce the risk of developing an infection.
Agammaglobulinemia—The lack of gamma globulins in the blood, associated with an increased susceptibility to infection.
B lymphocytes—Specialized blood cells that manufacture proteins called antibodies that attach themselves to invading foreign substances.
Chromosome—A microscopic thread-like structure found within each cell of the human body and consisting of a complex of proteins and DNA. Humans have 46 chromosomes arranged into 23 pairs. Chromosomes contain the genetic information necessary to direct the development and functioning of all cells and systems in the body. They pass on hereditary traits from parents to child (like eye color) and determine whether the child will be male or female.
T lymphocytes—Specialized blood cells that recognize invading organisms (helper T lymphocytes) and destroy them (killer T lymphocytes).
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John T. Lohr, PhD Teresa G. Odle Stephanie Dionne Sherk
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Author Info: John T. Lohr PhD, Teresa G. Odle, Stephanie Dionne Sherk, Thomson Gale, Gale, Detroit, Gale Encyclopedia of Children's Health, 2006 |