PCT No. PCT/FR80/00186 Sec. 371 Date Aug. 18, 1981 Sec. 102(e) Date Aug. 18, 1981 PCT Filed Dec. 19, 1980.This invention relates to a non-specific immunostimulating preparation for the treatment of immunodeficits, such as those encountered in leprosy and cancer, characterized in that it contains as sole active principle one or more bacterial ribosomal RNA's extracted from the following strains: Klebsiella pneumoniae
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