Abstract
Transient hypogammaglobulinemia of infancy (THI) is characterized by persistent low levels of IgG, below 2 standard deviations from mean, in infants above 6 months old
Most children improve by 24 months old and IgG levels are commonly below 400 mg/dL
Antibody response to infections are commonly normal
THI is frequently underdiagnosed as most patients are not unusually susceptible to infection
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Tatyana, M., Denis, C. (2019). Recurrent Respiratory Infections. In: Rezaei, N. (eds) Pediatric Immunology. Springer, Cham. https://doi.org/10.1007/978-3-030-21262-9_20
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DOI: https://doi.org/10.1007/978-3-030-21262-9_20
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