Primary Immunodeficiency (PID) refers to a group of health problems in which an
individual’s immune system doesn't work properly. The immune system normally
protects us from germs, but it does not work well in people with PID. Most PIDs are
caused by changes in a person’s genes. Scientists use a laboratory technique called
Whole genome sequencing (WGS) to find these changes. WGS has helped finding
many causes of PID, but not all. One reason is that some important genes are in parts
of the genome that are hard to read with normal methods. Long-read sequencing (LRS) is a newer technology that can read these tricky regions more clearly. With this better information, researchers can find the exact genetic changes that cause PID. This can help doctors improve diagnosis of the disease, help us understand the disease better, and guide the development of better treatments in the future