Table 8.

Associated infections with IgG subclasses deficiency [18-22]

IgG subclass deficiency	Total IgG%	Common infection and pathogen
IgG1	60%	Sinopulmonary infection, Septicemia, Osteomyelitis, Diarrhea, Skin infection, Meningitis
IgG2	32%	Sinopulmonary infection, Infection with streptococcus pneumonia, Haemophilus influenzae type b, Neisseria meningitidis
IgG3	4%	Sinopulmonary infection with Moraxella catarrhalis, Streptococcus pyogenes, Gastrointestinal infection, Lymphocytic meningitis, Herpes simplex infection, Erysipelas
IgG4	4%	Pulmonary infection, Mucocutaneous candidiasis

lgG, Immunoglobulin G.