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Hyper-IgM syndrome

Hyper-IgM syndrome is characterized by normal or elevated levels of immunoglobulin M (IgM) and decreased levels or the absence of other immunoglobulins. As a result, people are more susceptible to bacterial infections. Children with hyper-IgM syndrome have frequent infections of the sinuses and lungs.The disorder is diagnosed by measuring the concentration of immunoglobulins in the …

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