INDEPENDENT AUDITORS' CONSENT
We consent to the incorporation by reference in this Amendment No. 1 to
the Registration Statement No. 333-53086 of IGEN International, Inc. on Form S-3
of our report dated May 12, 2000 appearing in the Annual Report on Form 10-K of
IGEN International, Inc. for the year ended March 31, 2000 and to the reference
to us under the heading "Experts" in the Prospectus, which is part of this
Registration Statement.
/s/ Deloitte & Touche LLP
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Deloitte & Touche LLP
McLean, Virginia
January 10, 2001
