Finally, patients presenting with neutropenia and the diseases ataxia telangiectasia, glucose-6-phosphate dehydrogenase deficiency, Graves’ disease, and Hyper IgE syndrome, displayed hCAP-18 levels in the range of standard sample and no impaired bone-marrow neutrophil differentiation for these diseases have been reported29, 30, 31, 32. Here, CAMP is linked to hyper-IgE syndrome.