There are roughly 6,500 spoken languages in the world today. However, about 2,000 of those languages have fewer than 1,000 speakers. The most popular language in the world iâ¦s Mandarin Chinese. There are 1,213,000,000 people in the world that speak that language.
The following medical conditions are some of the possible causes of Immune deficiency. There are likely to be other possible causes, so ask your doctor about your symptoms. 1  Primary immune deficiency. 2  Other types of immune deficiency.3  Cancer patients (type of Immune deficiency conditions) - chemotherapy can cause immune deficiency. 4  Severe emotional disorders.ther medical conditions listed in the Disease Database as possible causes of Immune deficiency as a symptom include: 1  Acute lymphoblastic leukemia. 2  Acute myeloid leukemia. 3  Adenosine deaminase deficiency. 4  Alemtuzumab. 5  Anakinra. 6  Ataxia telangiectasia. 7  Atypical mycobacteriosis, familial. 8  Autoimmune polyendocrine syndrome type 1.
(November 2007) Immunodeficiency (or immune deficiency) is a state in which the immune system's ability to fight infectious disease and cancer is compromised or entirely absent. Most cases of immunodeficiency are acquired (secondary) due to extrinsic factors that affect the patient's immune system.