Selective immunoglobulin A deficiency

What is selective immunoglobulin A deficiency? Selective immunoglobulin A deficiency is a condition where there’s a lack of immunoglobulin or antibody A, called IgA for short. It’s called “selective” because all the other antibody classes, IgM, IgG, IgE and IgD are produced normally. IgA is in charge of protecting the mucosal surfaces of the body against foreign invaders, so without it, there’s a higher risk of mucosal infections. Find our full video library only on Osmosis: Join millions of current and future clinicians who learn by Osmosis, along with hundreds of universities around the world who partner with Osmosis from Elseiver to make medical and health education more engaging and efficient. We have unparalleled tools and materials to prepare you for success in school, on your board exams, and as a future clinician. Sign up for a free trial at If you’re interested in exploring an institutional partnership, visit to request a per