The following are additional Purdue OWL resources to help you write your cover letter: 1  Cover Letter Workshop- Formatting and Organization. 2  Example Employment Documents. 3  Cover Letters 1: Quick Tips. 4  Cover Letters 2: Preparing to Write a Cover Letter. 5  Cover Letter Presentation. 6  Job Search Documents for Working Class Positions.
1 IgG deficiency with hyper-IgM is a disease that results when the B-cell fails to switch from making IgM to IgG. 2  This produces an increase in the amount of IgM antibodies present and a decrease in the amount of IgG antibodies. 3  This disease is the result of a genetic mutation.
Definition of Selective IgA Deficiency. Selective IgA Deficiency is defined as a primary immunodeficiency characterized by an undetectable level of immunoglobulin A (IgA) in the blood and secretions but no other immunoglobulin deficiencies.There are five types (classes) of immunoglobulins or antibodies in the blood: IgG, IgA, IgM, IgD and IgE.lthough individuals with Selective IgA Deficiency do not produce IgA (or produce only extremely small amounts), they do make all the other immunoglobulin classes; hence the term Selective IgA Deficiency. Furthermore, the functions of their T-lymphocytes, phagocytic cells and complement systems are all normal.