Saudi-Arabia. 1  With the exception of the province of Asir on the western coast, Saudi Arabia has a desert climate characterized by extreme heat during the day, an abrupt drop in temperature at night, and very low annual rainfall. Because of the influence of a subtropical high-pressure system, there is considerable variation in temperature and humidity.
However, some people who have IgA deficiency experience recurrent respiratory tract infections, asthma, sinus infections, allergies and diarrhea. Selective IgA deficiency may also be found with autoimmune disease, in which your immune system attacks particular organs or tissues in your own body. Common autoimmune conditions found with IgA deficiency include rheumatoid arthritis, lupus and celiac disease.
In patients with Henoch-Schoenlein schÃ¶nlein, purpura Immunoglobulin (IgA) iga immune complexes are deposited in small, vessels which causes petechiae and palpable. Purpura when immune complexes occur in small vessels of the intestinal, wall gastrointestinal hemorrhage may. developost patients have an antecedent upper respiratory illness. More than 90 percent of Henoch-Schoenlein schÃ¶nlein purpura cases occur in children younger than 10; years, however adults with this condition are more likely to experience complications than. children