CONCORD, Calif.--(BUSINESS WIRE)--May 4, 2005--Cerus Corporation (Nasdaq:CERS) today announced that Claes Glassell, president and CEO, William J. Dawson, vice president, finance and CFO, and David N. Cook, vice president of research and development, will present on Wednesday, May 25, 2005, at 2:30 p.m. Eastern Time during the Fourth Annual Needham Biotechnology Conference. The conference is being held at the New York Palace Hotel in New York City. Interested parties can access a live or archived Internet broadcast of the presentation at http://www.cerus.com/index.aspx/News/Events_Calendar. The presentation will be archived for 30 days.