EXHIBIT 23.1 CONSENT OF INDEPENDENT CERTIFIED PUBLIC ACCOUNTANTS IVAX Diagnostics, Inc. (formerly b2bstores.com Inc.) Miami, Florida We hereby consent to the incorporation by reference in the Prospectus constituting a part of this Registration Statement of our report dated March 8, 2001, except for Note 1 as to which the date is March 14, 2001, relating to the financial statements of IVAX Diagnostics, Inc. (formerly b2bstores.com Inc.), appearing in the Company's Annual Report on Form 10-KSB for the year ended December 31, 2000. /s/ BDO Seidman, LLP New York, New York December 17, 2001