CONSENT OF INDEPENDENT CERTIFIED PUBLIC ACCOUNTANTS Genetic Vectors, Inc. Miami, Florida We hereby consent to the use in the Prospectus constituting a part of this Registration Statement of our report dated March 3, 2000, relating to the consolidated financial statements of Genetic Vectors, Inc., which is contained in that Prospectus. Our report contains an explanatory paragraph regarding the Company's ability to continue as a going concern. We also consent to the reference to us under the caption "Experts" in the Prospectus. /s/ BDO Seidman, LLP BDO Seidman, LLP Miami, Florida October 20, 2000