QIAGEN N.V. / Total Voting Rights announcement 31.01.2008 Total Voting Rights announcement according to Article 26a of the WpHG --------------------------------------------------------------------------- Qiagen N.V. hereby announces that at the end of the month January 2008 the number of Voting Rights amounts to a total of 195496779 Voting Rights. The change of Total Voting Rights is effective as of January 31, 2008 . DGAP 31.01.2008 --------------------------------------------------------------------------- Language: English Issuer: QIAGEN N.V. Spoorstraat 50 5911 KJ Venlo Niederlande Internet: www.qiagen.com End of News DGAP News-Service ---------------------------------------------------------------------------