Abstract
In 120 patients, treated for scabies infection, the serum IgE concentrations fell from high levels in 54 and normal levels in 66 to lower levels 12 mo. after treatment. The specific IgE antibodies to Dermatophagoides pteronyssinus were reduced 12 mo. after treatment. The decrease in both IgE concentrations and IgE antibodies was most conspicuous in non-atopic patients. The findings confirm previous observations of specific immunological hypersensitivity to scabies mite. Scabies infection apparently stimulates the production of IgE antibodies.