![person studying](/sites/default/files/styles/large/public/understandingpi.jpg?itok=Zo3vrl11)
![IDF video](/sites/default/files/styles/medium/public/idf-video-fallback.jpg?itok=igpGBW9o)
Lunch & Learn: What is chimerism?
![Healing the trauma of a life-changing PI diagnosis](/sites/default/files/styles/medium/public/Mental%20Health.png?itok=zQYFnpEx)
Healing the trauma of a life-changing PI diagnosis
Prophylactic antibiotics and PI
![Person typing on a computer](/sites/default/files/styles/medium/public/idf-news-article-fallback.jpg?itok=LzAcU_1l)
Why and how to collect a family medical history
![Project ECHO. Health worker with patient](/sites/default/files/styles/medium/public/project-echo.jpg?itok=_ll9x9Hm)
Project ECHO clinician series: Immune system basics
![undiagnosed podcast graphic](/sites/default/files/styles/medium/public/undiagnosed.png?itok=OxpTZJmL)
Undiagnosed episode 1: "The caretaker"
![](/sites/default/files/styles/medium/public/CME-Award-Poster.jpg?itok=d3-fXVA6)
Patient-informed continuing education course on PI wins award
Severe combined immunodeficiency (SCID)
Severe combined immune deficiency (SCID) is a life-threatening primary immunodeficiency (PI), with a combined absence of T cell and B cell function. There are at least 20 different genetic variants that can cause SCID.
Selective IgA deficiency
Selective IgA deficiency is a primary immunodeficiency characterized by an undetectable level of immunoglobulin A (IgA) in the blood and secretions but no other immunoglobulin deficiencies.
Leukocyte adhesion deficiency (LAD)
Leukocyte adhesion deficiency (LAD) is a primary immunodeficiency that causes individuals to be abnormally susceptible to developing frequent soft-tissue infections, gum inflammation, and tooth loss.