Exhibit 21.1

SUBSIDIARIES OF THE REGISTRANT

Company	State or Country of Organization
BioHelix Corporation	Massachusetts
Diagnostic Hybrids, Inc.	Ohio
Litmus Concepts, Inc.	California
Metra Biosystems, Inc.	California
Osteo Sciences Corporation	Oregon
Pacific Biotech, Inc.	California
Quidel China, Ltd.	China
Quidel Germany, GmbH	Germany
Quidel International, LLC	Delaware