hpv16 e7 which in the cases examined was associated with a spontaneous regression of an hpv associated cancer precursor lesion as by means of the skin test described an immune reaction was detected which was associated with regression of cancer precursor lesions the skin test can be used as an instrument for controlling a vaccination success against e6 and or e7 a broad screening by means of skin testing for the clarification of the mechanisms of an immunologically mediated tumor regression is also possible because of the extremely high expenditure for in vitro experiments it is hardly possible to test a cellular immunity for a large number of patients by means of laboratory tests in future studies regarding vaccination with a hypothetically therapeutically effective vaccine against the cervix carcinoma by immunisation against the tumor protein hpv16 e7 the skin test according to the invention is because it is practicable and sensitive an ideal method for detecting the desired reaction of the cellular immunological system to the vaccination in the example mentioned above the peptides used were dissolved in 70 glycerin glycerin is preferred because it has a viscosity suitable for an intracutaneous application and in addition has a disinfecting effect according to the invention however other suitable solvents can also be used possibly due to the solubility characteristics of a peptide it has to be dissolved in a specially adapted solution further additives such as emulsifiers chelating agents disinfectants and others can also be added to the solvents used according to the invention the skin test can be effected by an intracutaneous injection of an effective amount of dissolved e6 and or e7 antigen by means of a syringe accordingly the diagnosis kit would contain on.