title: 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.
authors: Department of Tropical Pediatrics, Faculty of Tropical Medicine, Mahidol University, Bangkok 10400, Thailand. tmkps@mahidol.ac.th
authors: Krisana
authors: K
authors: Pengsaa
authors: Chukiat
authors: C
authors: Sirivichayakul
authors: Niyada
authors: N
authors: Vithayasai
authors: Sansnee
authors: S
authors: Senawong
authors: Voravich
authors: V
authors: Luangwedchakarn
mesh_terms: D000293:Adolescent; D000818:Animals; D002908:Chronic Disease; D003967:Diarrhea / Q000209:etiology / Q000469:parasitology / Q000503:physiopathology*; D016829:Giardia lamblia / Q000469:parasitology*; D006801:Humans; D017099:IgG Deficiency / Q000097:blood; D007074:Immunoglobulin G; D007136:Immunoglobulins / Q000032:analysis* / Q000097:blood; D008297:Male; D013785:Thailand
chemical_list: D007074:Immunoglobulin G; D007136:Immunoglobulins