Abstract: The invention relates to vaccines which, in addition to antigens, contain fat-soluble vitamins (such as vitamins A, D or E), physiologically acceptable zinc and selenium compounds and, optionally, absorption-promoting agents and/or spreading oils.

Abstract: A process has been developed for the preparation of (1) live and (2) inactivated vaccines which comprises subjecting a suspension of a micro-organism to an alternating electric current and, if desired, incorporating the micro-organisms into a vaccine preparation. The invention also includes the (1) live and (2) inactivated vaccines prepared by the processes of the invention.

Abstract: A method has been developed for the modification of tumour cells by treatment of said tumour cells in aqueous suspension with an alternating electric current so that said tumour cells lose their pathogenic activity and carcinogenic activity and still possess only antigenic activity, stimulating the immunological system against themselves. In addition to the above-described method, the invention also includes the carcinostatically active material obtained by the above-described process, pharmaceutical compositions containing said carcinostatically active material and methods for the treatment of tumours.