[Changes in the serum protein picture in viral hepatitis. III. Evaluation of immunoglobulins]

Serum IgG, IgA and IgM were determined sequentially during the first four weeks of illness in 30 patients suffering from acute viral hepatitis. Initially increased levels of IgM, and to a lower extent of IgG were the most characteristic findings. Two patients showed increased levels of IgA. The determination of immunoglobulins is not contributory to the diagnosis of viral hepatitis, though it may have a significant value in detecting the activity of the disease.