Abstract: The invention relates, generally, to medicine, and particularly to cell therapy. Claimed is a medicinal preparation characterized by a certain composition and quantitative parameters of a cell suspension prepared from native or cryopreserved hemopoietic liver and/or spleen cells of a human embryo. Furthermore, claimed is a method of treating acquired immune deficiency syndrome (HIV infection) by administering the above medicinal preparation that is chosen from a tissue bank of various samples, taking into account individual indices of a patient, the same sample of preparation being used in repeated administration.