Tag: Primary immunodeficiency

According to the Immune Deficiency Foundation, Severe Combined Immunodeficiency (SCID) is one of over 400 types of primary immunodeficiency diseases caused by genetic changes. As a quintessential example of a primary deficiency, SCID profoundly impairs the immune system, leaving individuals susceptible to life-threatening infections.

Statistics show that secondary immunodeficiencies are far more common than primary immunodeficiencies, with the distinction often determined by the root cause. The core difference between primary and secondary deficiencies lies in their origin: one is an inherited genetic condition, while the other is acquired later in life due to an external factor.