IDEXX Laboratories launches IDEXX Coag Dx™ Analyzer [Trade]
Fast and sensitive in-clinic diagnostic testing
for coagulation disorders in animals

Westbrook, Maine, December 21, 2007—IDEXX Laboratories, Inc. (NASDAQ:IDXX), announces the launch of the IDEXX Coag Dx™ Analyzer. This newest member of the IDEXX VetLab® Suite enables veterinarians to conduct comprehensive coagulation testing in-clinic, and delivers results in seconds for fresh and citrated whole blood prothrombin time (PT) and activated partial thromboplastin time (aPTT). The capacity for immediate detection of clotting disorders, an essential part of hemostatic testing, is pivotal in the successful treatment of the bleeding patient as well as in the management of many critical care and surgery cases. The IDEXX Coag Dx™ Analyzer, by assessing abnormalities in the intrinsic, extrinsic and common pathways of a whole blood sample, yields sensitive and accurate diagnoses of coagulation disorders in animals.

“Laboratory tests are essential in characterizing hemostatic disorders. The IDEXX Coag Dx Analyzer brings this capability into the clinic,” said Michelle Frye, MS, DVM, IDEXX Medical Affairs Manager. “When combined with a complete blood count, testing on the IDEXX Coag Dx Analyzer helps veterinarians quickly diagnose bleeding disorders, so that the appropriate treatment can be initiated promptly for the critical bleeding patient.” Dr. Frye added, “In addition, pre-procedural screening for clotting problems in at-risk animals helps anticipate and avoid bleeding complications during or after the procedure—times when taking corrective measures can be problematic.”

The IDEXX Coag Dx Analyzer is an integral part of the IDEXX VetLab® Suite of analyzers, the in-clinic laboratory that delivers comprehensive, in-depth diagnostics, flexibility in testing, and efficiencies that minimize staff time and effort. Results for hematology, chemistry, electrolytes, endocrinology, urinalysis, blood gas and coagulation are simply and seamlessly integrated through the IDEXX VetLab® Station, which also offers archiving and easy access to historical results for identifying and graphically reporting trends.

Tina Hunt, PhD, Marketing Manager at IDEXX Laboratories, cited a recent IDEXX market research study involving 100 U.S. practitioners, “Sixty-eight percent of veterinarians interviewed agreed that there is an advantage to running coagulation in-clinic.” The IDEXX Coag Dx Analyzer will connect to the IDEXX VetLab Suite with the IDEXX VetLab Station 2.30 software update, and the coagulation results will appear along with the rest of a patient’s diagnostic results in one integrated report. Dr. Hunt concluded, “With the addition of the Coag Dx Analyzer to the IDEXX VetLab Suite, IDEXX now offers veterinarians the most comprehensive point-of-care diagnostic solution, providing reference laboratory capabilities for in-house blood work.”

The veterinary-specific Coag Dx Analyzer can be used with four cartridges: prothrombin time (PT) for fresh and citrated whole blood and activated partial thromboplastin time (aPTT) for fresh and citrated whole blood.

For more information about the IDEXX Coag Dx Analyzer or cartridges, please contact IDEXX at 1-800-548-6733 ext. 64504, 1-207-556-4504, or visit www.idexx.com/coagdx.

About the IDEXX VetLab® Suite
The IDEXX VetLab® Suite is a highly integrated set of veterinary analyzers that provides fast and flexible results on a patient’s blood and urine within minutes of the pet visit. Diagnostic capabilities of the suite include clinical chemistry, electrolytes, hematology with five-part differential and reticulocytes, endocrinology, blood gases, coagulation and urinalysis. The IDEXX VetLab® Station, which serves as an information system for the in-house laboratory, integrates results from all the analyzers and IDEXX SNAP® point-of-care tests into a single, comprehensive and easy-to-use patient report and stores this information in its database for easy future reference and historical results-trending capability.

About IDEXX Laboratories
IDEXX Laboratories, Inc. is a leader in companion animal health, serving practicing veterinarians around the world with innovative, technology-based offerings, including a broad range of diagnostic products and services, practice-management systems and pharmaceuticals. IDEXX products enhance the ability of veterinarians to provide advanced medical care and to build more economically successful practices. IDEXX is also a worldwide leader in providing diagnostic tests and information for the production animal industry and tests for the quality and safety of water and milk. Headquartered in Maine, IDEXX Laboratories employs more than 4,500 people and offers products to customers in over 100 countries.

Note Regarding Forward-Looking Statements
This press release contains statements about the Company’s business prospects that are forward-looking statements as defined in the Private Securities Litigation Reform Act of 1995. These statements are based on management's expectations of future events as of the date of this press release, and the Company assumes no obligation to update any forward-looking statements as a result of new information or future events or developments. Actual results could differ materially from management’s expectations. Factors that could cause or contribute to such differences include the following: the Company’s ability to develop, manufacture, introduce and market new products and enhancements to existing products; changes or trends in veterinary medicine that affect the rate of use of the Company’s products and services by veterinarians; and the Company’s ability to manufacture complex biologic products. A further description of these and other factors can be found in the Company's Annual Report on Form 10-K for the year ended December 31, 2006 (1.5 MB), and quarterly report on Form 10-Q for the quarter ended September 30, 2007 (743 KB), in the section captioned "Risk Factors.”