Because this is often an AD disorder, it is important to evaluate family members. Family members will have labs drawn for genetic testing and additional labs as clinically indicated. Selected family members will have EBV cell lines made and all family members will receive a genetic-oriented physical examination with close examination of their palates, hyper-extensibility, etc. If on this evaluation any information is uncovered which suggests abnormalities related to Hyper IgE syndrome, then further workup would include chest X-ray or CT, possible spine films, dental evaluation, dermatology consult, and other consults or procedures deemed necessary for that particular relative. For the recessive forms of HIES, such as DOCK8 deficiency and PGM3 deficiency, family members may be evaluated as possible donors if a hematopoietic stem cell transplant is necessary.