Chronic diarrhea and abnormal serum immunoglobulin levels: a case report.

Abstract
A 15-year-old Thai boy with multiple episodes of chronic diarrhea caused by giardiasis with hypogammaglobulin M and IgG4 subclass deficiency (but normal antibody response to rabies vaccine) is reported. Immune status follow-up is necessary for a definite diagnosis and proper management.
Description
The Southeast Asian Journal of Tropical Medicine and Public Health.
Keywords
Citation
Pengsaa K, Sirivichayakul C, Vithayasai N, Senawong S, Luangwedchakarn V. Chronic diarrhea and abnormal serum immunoglobulin levels: a case report. The Southeast Asian Journal of Tropical Medicine and Public Health. 2007 May; 38(3): 424-6