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.
Etiology. Other than genetically determined size, maternal diabetes mellitus is the major cause of large-for-gestational-age (LGA) infants.The macrosomia results from the anabolic effects of high fetal insulin levels produced in response to excessive maternal blood glucose during gestation.he Fenton growth charts provide a more precise assessment of growth vs gestational age (see Figure: Fenton Growth Chart for Preterm Boys and see Figure: Fenton Growth Chart for Preterm Girls).