Helping patients

What is PID?

There are over 150 known genetic defects that cause PID, all of these being rare and involving different parts of the immune system. Most of these present in childhood but the most common of all the PIDs occurs in adults (currently called ‘Common Variable Immunodeficiency-CVID); although still rare (about 2000 patients in UK) no genetic defects have yet been discovered in most CVIDs. The majority of PID patients suffer from recurrent infections, but some types are due to defects in genes that control inflammation.

Each month we hope to cover one of the PID conditions involving adults; this will include a brief lay description of the cause and symptoms, and will be accompanied by an account of a patient’s experience of the path to establishing the diagnosis and subsequent treatment.

Meanwhile those seeking more general or specific information on PIDs should visit the useful links page