EXHIBIT 1 JOINT FILING AGREEMENT OF AMPERSAND 1999 LIMITED PARTNERSHIP AND AMP-99 MANAGEMENT COMPANY LIMITED LIABILITY COMPANY The undersigned persons agree and consent pursuant to Rule 13d-1(k)(1) under the Securities Exchange Act of 1934, as...Joint Filing Agreement • March 21st, 2005 • Ampersand 1999 Lp • Biological products, (no disgnostic substances)
The undersigned persons agree and consent pursuant to Rule 13d-1(k)(1) under the Securities Exchange Act of 1934, as amended, as of the date set forth below, to the joint filing on their behalf of the Schedule 13D to which this Exhibit is attached, in connection with their beneficial ownership of the common stock of V.I. Technologies, Inc. at March 21, 2005 and agree that such statement is filed on behalf of each of them.
