Understanding primary immunodeficiency (PI)
Understanding PI
The more you understand about primary immunodeficiency (PI), the better you can live with the disease or support others in your life with PI. Learn more about PI, including the various diagnoses and treatment options.
Learn more about PI
Living with PI
Living with PI
Living with primary immunodeficiency (PI) can be challenging, but you’re not alone—many people with PI lead full and active lives. With the right support and resources, you can, too.
Learn more about living with PI
Get involved
Get involved
Be a hero for those with PI. Change lives by promoting primary immunodeficiency (PI) awareness and taking action in your community through advocacy, donating, volunteering, or fundraising.
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Advancing research and clinical care
Advancing research and clinical care
Whether you’re a clinician, researcher, or an individual with primary immunodeficiency (PI), IDF has resources to help you advance the field. Get details on surveys, grants, and clinical trials.
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Low t-cell counts in babies

May 26, 2021

The IDF Podcast · Low T Cell Counts In Babies - Part of the SCID Compass Series

As part of the blood screening during a newborn screening at birth, doctors measure the T cell receptor excision circles or TRECs to test if they are within a normal or abnormal range. Abnormal TREC results could mean that a baby has Severe Combined Immunodeficiency or SCID, or it could be a different condition associated with the immune system. It is essential to learn about the medical steps parents should take if their child has an abnormal result and is diagnosed with low T cells. We will be discussing these medical steps further today with Dr. John Routes.