A method of committing fraud by sending emails to the customers of a legitimate online business, such as a bank, that pretend to be from that business and ask for information such as account numbers or passwords. phishing.
Review possible medical complications related to Common Variable Immunodeficiency: 1  Opportunistic infections. 2  Recurring ear infections (see Ear infection) 3  Recurring sinus infections (see Sinusitis)  Recurring lung infections (see Lung 1  symptoms) Recurring bronchial infections (see Bronchitis)  Gastrointestinal infections (see Digestive 1  symptoms) Anemia.
To be considered a primary immunodeficiency, the cause of the immune deficiency must not be secondary in nature (i.e., caused by other disease, drug treatment, or environmental exposure to toxins).igns and symptoms [edit]. The precise symptoms of a primary immunodeficiency depend on the type of defect. Generally, the symptoms and signs that lead to the diagnosis of an immunodeficiency include recurrent or persistent infections or developmental delay as a result of infection.