Intercell Usa (IOMI) 10-Q 2007 Q3 Quarterly report

EXHIBIT 32.1

CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

            In connection with the Quarterly Report on Form 10-Q of Iomai Corporation (the “Company”) for the quarterly period ended September 30, 2007 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), each of the undersigned to his knowledge hereby certifies, pursuant to 18 U.S.C. Section 1350, that:

(i)	The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and
(ii)	The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

/s/ Stanley C. Erck  

Stanley C. Erck 

Chief Executive Officer 

/s/ Russell P. Wilson  

Russell P. Wilson 

Chief Financial Officer 

Dated: November 12, 2007