Crucell 2005 Annual Report Available Online

Leiden, The Netherlands, April 28, 2006 - Dutch Biotechnology company Crucell N.V. (Euronext, NASDAQ: CRXL; Swiss Exchange: SW CRX) has today announced that the English version of its 2005 Annual Report is available to be downloaded from the Investors section of the Company’s website at www.crucell.com. Hard copies of the report will be mailed by the second week of May to those who have requested copies. Further requests for the printed version of the report should be directed to Crucell’s Investor Relations department.

About Crucell
Crucell N.V. (Euronext, NASDAQ: CRXL; Swiss Exchange: SW CRX) is a biotechnology company focused on research, development and worldwide marketing of vaccines and antibodies that prevent and treat infectious diseases. Its vaccines are sold in public and private markets worldwide. Crucell’s core portfolio includes vaccines against hepatitis B and virosomal influenza. Crucell also markets travel vaccines, such as the only oral anti-typhoid vaccine on the market. The Company has a broad development pipeline, including both early-stage products and products almost ready to go to market. Several Crucell products are based on its unique PER.C6® production technology. The Company licenses this and other technologies to the biopharmaceutical industry. Important partners and licensees include DSM Biologics, sanofi aventis, GSK and Merck & Co. Crucell is headquartered in Leiden (the Netherlands), with subsidiaries in Switzerland, elsewhere in Europe, and in Korea. The Company employs about 900 people. For more information, please visit www.crucell.com.

Contact Information

Harry Suykerbuyk

Director Investor Relations & Corporate Communications

Crucell N.V.

Contact via E-mail