EXHIBIT 23.1 CONSENT OF INDEPENDENT ACCOUNTANTS We consent to the inclusion in this Amendment No. 1 to Current Report on Form 8-K/A of our report dated March 4, 1997 on our audit of the financial statements of Innovir Laboratories, Inc. and Subsidiaries (formerly VIMRx Holdings, Ltd. and Subsidiaries). Coopers & Lybrand L.L.P. New York, New York March 5, 1997