delayed-type hypersensitivity responses

Definition of delayed-type hypersensitivity response
National Cancer Institute

delayed-type hypersensitivity response

(...HY-per-SEN-sih-TIH-vih-tee reh-SPONTS)
An inflammatory response that develops 24 to 72 hours after exposure to an antigen that the immune system recognizes as foreign. This type of immune response involves mainly T cells rather than antibodies (which are made by B cells). Also called DTH.

Source: NCI Dictionary of Cancer Terms