Cell-mediated immune reactions in measles.

Cell-mediated reactions in measles cases, in direct contacts and healthy children were tested. Indices of phytohaemagglutinin-stimulated blastic transformation and leukocyte migration inhibition were evaluated. Positive reactions were found in the first and second weeks after manifestation of clinical symptoms. The application of glucocorticosteroids in clinical complications resulted in delayed and reduced leukocyte migration inhibition. Studies on seronegative contacts suggested that positive cell-mediated reactions may appear before manifestation of clinical symptoms.