Prevalence of Antibodies and Cytokines in Participants With Chronic Granulomatous Disease

Inclusion Criteria: * The participant must have been diagnosed with CGD based on the referring physician's confirmation that NADPH oxidase activity is ≤5% (i.e., the percentage of dihydrorhodamine-positive \[DHR+\] cells is ≤5% by flow cytometry) OR based on confirmed pathogenic mutation in a CGD associated gene (CYBB, CYBA, NCF1, NCF2, NCF4, or CYBC1). * The participant or the participant's legally authorized guardian or representative (if applicable) must be capable of giving signed informed consent. * The participant (with assistance from the participant's legally authorized guardian/representative or primary caregiver, if applicable) must be capable of complying with the requirements and restrictions listed in the protocol and informed consent form (ICF). Exclusion Criteria: * The participant has undergone an allogeneic bone marrow transplant or investigational gene therapy. * The participant is unable to comply with the sample collection procedure based on investigator judgment.