Cerus to Release Third Quarter Results on October 29, 2009

Cerus Corporation (NASDAQ:CERS) announced today that its third quarter 2009 financial results will be released on Thursday, October 29, 2009, after the close of the stock market. The company will host a conference call and webcast at 4:15 p.m. EDT that afternoon, during which management will discuss the company's financial results and provide a general business overview.

To access the live webcast, please visit the Investor Relations page of the Cerus web site at http://investor.cerus.com. Alternatively, you may access the live conference call by dialing 877-407-0782 (U.S.) or 201-689-8567 (international).

A replay will be available on the company’s web site, or by dialing 877-660-6853 (U.S.) or 201-612-7415 (international) and entering account number 286 and conference ID number 300292. The replay will be available approximately two hours after the call through November 6, 2009.

ABOUT CERUS

Cerus Corporation is a biomedical products company focused on commercializing the INTERCEPT Blood System to enhance blood safety. The INTERCEPT Blood System is designed to inactivate blood-borne pathogens in donated blood components intended for transfusion. Cerus currently markets the INTERCEPT Blood System for both platelets and plasma in Europe, Russia, the Middle East and selected countries in other regions around the world. The INTERCEPT red blood cell system is currently in clinical development. See http://www.cerus.com for more information.

INTERCEPT and the INTERCEPT Blood System are trademarks of Cerus Corporation.