| A rare genetic primary immunodeficiency disorder with characteristics of increased susceptibility to Neisseria bacterial infections resulting from complement factor D deficiency. Typical manifestations are recurrent respiratory infections, recurrent meningitis and/or septicemia. Patients typically present fever, purpuric rash, arthralgia, myalgia and undetectable complement factor D plasma concentrations. Caused by homozygous mutation in the CFD gene on chromosome 19p13. |
