EXHIBIT 16 [Letterhead of Coopers & Lybrand L.L.P.] May 19, 1997 Securities and Exchange Commission 450 Fifth Street, N.W. Washington, D.C. 20549 Dear Sirs and Mesdames: We have read the statements made by Innovir Laboratories, Inc. in the accompanying Form 8-K which is being filed with the Securities and Exchange Commission, pursuant to Item 4 of Form 8-K. We agree with the statements concerning our Firm. Very truly yours, /s/ COOPERS & LYBRAND L.L.P. ------------------------------ Coopers & Lybrand L.L.P.