I’m curious about the difference in symptoms presentation with high IgG antibodies vs. high IgA antibodies. In the blood test I had done, my IgG and IgM antibodies were normal, but my IgA antibodies were really high (43 when normal is <9). From what research I’ve done, it seems that this is indicative of a “superficial” infection, and is probably secondary to something else that is mainly causing my symptoms. So, what symptoms would one expect in a patient with high IgA antibodies?
My understanding is that ‘superficial’ can also mean the gut mucosa (i.e. the gut lining). If you think of the digestive tract, it has an opening at one end and an opening at the other. So it’s almost like the linings of the esophagus, stomach and gut are external surfaces.