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SAN DIEGO, CA--(Marketwire - Feb 2, 2012) - Quidel Corporation (NASDAQ: QDEL), a leading provider of rapid diagnostic testing solutions and cellular-based virology assays, will release fourth quarter and full year 2011 financial results after market close on Wednesday, February 29, 2012.

Following the release of results, Douglas Bryant, president and chief executive officer, and Randy Steward, chief financial officer, will host an investment community conference call beginning at 5:00 p.m. Eastern Time (2:00 p.m. Pacific Time) to discuss those results and to answer questions. During the conference call, the company will discuss business and financial developments and trends. The company's statements may contain or constitute material information that has not been previously disclosed.

To participate in the live call by telephone from the U.S., dial 866-383-8008, or from outside the U.S. dial 617-597-5341, and enter the pass code 75563656.

A live webcast of the call can be accessed at http://www.quidel.com, and the Web site replay will be available for 14 days. The telephone replay will be available for 48 hours beginning at 8:00 p.m. Eastern Time (5:00 p.m. Pacific Time) on February 29th by dialing 888-286-8010 from the U.S., or 617-801-6888 for international callers, and entering pass code 17782358.

About Quidel Corporation
Quidel Corporation serves to enhance the health and well being of people around the globe through the development of diagnostic solutions that can lead to improved patient outcomes and provide economic benefits to the healthcare system. Marketed under the QuickVue®, D3® Direct Detection and ThyretainT leading brand names, as well as under the new SofiaT and Quidel MolecularT brands, Quidel's products aid in the detection and diagnosis of many critical diseases and conditions, including influenza, respiratory syncytial virus, Strep A, herpes, pregnancy, thyroid disease and fecal occult blood. Quidel's research and development engine is also developing a continuum of diagnostic solutions from advanced lateral-flow and direct fluorescent antibody to molecular diagnostic tests to further improve the quality of healthcare in physicians' offices and hospital and reference laboratories. For more information about Quidel's comprehensive product portfolio, visit www.quidel.com and Diagnostic Hybrids at www.dhiusa.com.

SAN DIEGO, CA--(Marketwire - Feb 2, 2012) - Quidel Corporation (NASDAQ: QDEL), a leading provider of rapid diagnostic testing solutions and cellular-based virology assays, will release fourth quarter and full year 2011 financial results after market close on Wednesday, February 29, 2012.

Following the release of results, Douglas Bryant, president and chief executive officer, and Randy Steward, chief financial officer, will host an investment community conference call beginning at 5:00 p.m. Eastern Time (2:00 p.m. Pacific Time) to discuss those results and to answer questions. During the conference call, the company will discuss business and financial developments and trends. The company's statements may contain or constitute material information that has not been previously disclosed.

To participate in the live call by telephone from the U.S., dial 866-383-8008, or from outside the U.S. dial 617-597-5341, and enter the pass code 75563656.

A live webcast of the call can be accessed at http://www.quidel.com, and the Web site replay will be available for 14 days. The telephone replay will be available for 48 hours beginning at 8:00 p.m. Eastern Time (5:00 p.m. Pacific Time) on February 29th by dialing 888-286-8010 from the U.S., or 617-801-6888 for international callers, and entering pass code 17782358.

About Quidel Corporation
Quidel Corporation serves to enhance the health and well being of people around the globe through the development of diagnostic solutions that can lead to improved patient outcomes and provide economic benefits to the healthcare system. Marketed under the QuickVue®, D3® Direct Detection and ThyretainT leading brand names, as well as under the new SofiaT and Quidel MolecularT brands, Quidel's products aid in the detection and diagnosis of many critical diseases and conditions, including influenza, respiratory syncytial virus, Strep A, herpes, pregnancy, thyroid disease and fecal occult blood. Quidel's research and development engine is also developing a continuum of diagnostic solutions from advanced lateral-flow and direct fluorescent antibody to molecular diagnostic tests to further improve the quality of healthcare in physicians' offices and hospital and reference laboratories. For more information about Quidel's comprehensive product portfolio, visit www.quidel.com and Diagnostic Hybrids at www.dhiusa.com.

SAN DIEGO, CA--(Marketwire - Feb 2, 2012) - Quidel Corporation (NASDAQ: QDEL), a leading provider of rapid diagnostic testing solutions and cellular-based virology assays, will release fourth quarter and full year 2011 financial results after market close on Wednesday, February 29, 2012.

Following the release of results, Douglas Bryant, president and chief executive officer, and Randy Steward, chief financial officer, will host an investment community conference call beginning at 5:00 p.m. Eastern Time (2:00 p.m. Pacific Time) to discuss those results and to answer questions. During the conference call, the company will discuss business and financial developments and trends. The company's statements may contain or constitute material information that has not been previously disclosed.

To participate in the live call by telephone from the U.S., dial 866-383-8008, or from outside the U.S. dial 617-597-5341, and enter the pass code 75563656.

A live webcast of the call can be accessed at http://www.quidel.com, and the Web site replay will be available for 14 days. The telephone replay will be available for 48 hours beginning at 8:00 p.m. Eastern Time (5:00 p.m. Pacific Time) on February 29th by dialing 888-286-8010 from the U.S., or 617-801-6888 for international callers, and entering pass code 17782358.

About Quidel Corporation
Quidel Corporation serves to enhance the health and well being of people around the globe through the development of diagnostic solutions that can lead to improved patient outcomes and provide economic benefits to the healthcare system. Marketed under the QuickVue®, D3® Direct Detection and ThyretainT leading brand names, as well as under the new SofiaT and Quidel MolecularT brands, Quidel's products aid in the detection and diagnosis of many critical diseases and conditions, including influenza, respiratory syncytial virus, Strep A, herpes, pregnancy, thyroid disease and fecal occult blood. Quidel's research and development engine is also developing a continuum of diagnostic solutions from advanced lateral-flow and direct fluorescent antibody to molecular diagnostic tests to further improve the quality of healthcare in physicians' offices and hospital and reference laboratories. For more information about Quidel's comprehensive product portfolio, visit www.quidel.com and Diagnostic Hybrids at www.dhiusa.com.

SAN DIEGO, CA--(Marketwire - Feb 2, 2012) - Quidel Corporation (NASDAQ: QDEL), a leading provider of rapid diagnostic testing solutions and cellular-based virology assays, will release fourth quarter and full year 2011 financial results after market close on Wednesday, February 29, 2012.

Following the release of results, Douglas Bryant, president and chief executive officer, and Randy Steward, chief financial officer, will host an investment community conference call beginning at 5:00 p.m. Eastern Time (2:00 p.m. Pacific Time) to discuss those results and to answer questions. During the conference call, the company will discuss business and financial developments and trends. The company's statements may contain or constitute material information that has not been previously disclosed.

To participate in the live call by telephone from the U.S., dial 866-383-8008, or from outside the U.S. dial 617-597-5341, and enter the pass code 75563656.

A live webcast of the call can be accessed at http://www.quidel.com, and the Web site replay will be available for 14 days. The telephone replay will be available for 48 hours beginning at 8:00 p.m. Eastern Time (5:00 p.m. Pacific Time) on February 29th by dialing 888-286-8010 from the U.S., or 617-801-6888 for international callers, and entering pass code 17782358.

About Quidel Corporation
Quidel Corporation serves to enhance the health and well being of people around the globe through the development of diagnostic solutions that can lead to improved patient outcomes and provide economic benefits to the healthcare system. Marketed under the QuickVue®, D3® Direct Detection and ThyretainT leading brand names, as well as under the new SofiaT and Quidel MolecularT brands, Quidel's products aid in the detection and diagnosis of many critical diseases and conditions, including influenza, respiratory syncytial virus, Strep A, herpes, pregnancy, thyroid disease and fecal occult blood. Quidel's research and development engine is also developing a continuum of diagnostic solutions from advanced lateral-flow and direct fluorescent antibody to molecular diagnostic tests to further improve the quality of healthcare in physicians' offices and hospital and reference laboratories. For more information about Quidel's comprehensive product portfolio, visit www.quidel.com and Diagnostic Hybrids at www.dhiusa.com.

SAN DIEGO, CA--(Marketwire - Feb 1, 2012) - Ardea Biosciences, Inc. (NASDAQ: RDEA) today announced the pricing of an underwritten public offering of 8,500,000 shares of its common stock, offered at a price to the public of $17.00 per share. The gross proceeds to Ardea from this offering are expected to be $144.5 million, before deducting underwriting discounts and commissions and other estimated offering expenses payable by Ardea. Ardea has granted the underwriters a 30-day option to purchase up to an aggregate of 1,275,000 additional shares of common stock to cover over-allotments, if any. The offering is expected to close on or about February 6, 2012, subject to customary closing conditions. Ardea anticipates using the net proceeds from the offering for general corporate purposes, which may include research and development expenses, including expenses related to Phase 3 clinical trials of lesinurad, capital expenditures, working capital, and general and administrative expenses.

Jefferies & Company, Inc. is acting as sole book-running manager for the offering. Cowen and Company, LLC, Lazard Capital Markets LLC, Leerink Swann LLC, Oppenheimer & Co. Inc. and Wells Fargo Securities, LLC are co-lead managers for the offering. JMP Securities LLC and Mizuho Securities USA Inc. are co-managers for the offering.

The securities described above are being offered by Ardea pursuant to a shelf registration statement previously filed with the Securities and Exchange Commission (the "SEC"), which the SEC declared effective on January 12, 2012. A preliminary prospectus supplement related to the offering has been filed with the SEC and is available on the SEC's website located at http://www.sec.gov. Copies of the final prospectus supplement and the accompanying prospectus relating to this offering, when available, may be obtained from Jefferies & Company, Inc., Attention: Equity Syndicate Prospectus Department, 520 Madison Avenue, 12th floor, New York, NY 10022, or by telephone at 877-547-6340, or by email at Prospectus_Department@Jefferies.com.

This press release shall not constitute an offer to sell or the solicitation of an offer to buy these securities, nor shall there be any sale of these securities in any state or other jurisdiction in which such offer, solicitation or sale would be unlawful prior to the registration or qualification under the securities laws of any such state or other jurisdiction.

About Ardea Biosciences, Inc.

Ardea Biosciences, Inc., of San Diego, California, is a biotechnology company focused on the development of small-molecule therapeutics for the treatment of serious diseases. Lesinurad, our lead product candidate for the chronic treatment of gout, is a once-daily, oral inhibitor of the URAT1 transporter that has entered Phase 3 clinical development. Our next-generation URAT1 inhibitor, RDEA3170, is currently in Phase 1 clinical development. BAY 86-9766 (RDEA119) is a potent and specific inhibitor of mitogen-activated ERK kinase (MEK) for the treatment of cancer being developed by Bayer HealthCare under a global license agreement with Ardea. BAY 86-9766 (RDEA119) is currently in a Phase 2 study in patients with hepatocellular carcinoma in combination with sorafenib and a Phase 1/Phase 2 study in patients with advanced pancreatic cancer in combination with gemcitabine.

Statements contained in this press release regarding matters that are not historical facts are "forward-looking statements" within the meaning of the Private Securities Litigation Reform Act of 1995. Because such statements are subject to risks and uncertainties, actual results may differ materially from those expressed or implied by such forward-looking statements. Such statements include, but are not limited to, statements regarding Ardea's expectations with respect to the completion, timing and size of its offering, the expected gross proceeds from the offering and its anticipated use of proceeds from the offering. Risks that contribute to the uncertain nature of the forward-looking statements include, among others, risks associated with market conditions and the satisfaction of customary closing conditions related to the offering, as well as risks related to the outcome of preclinical and clinical studies, risks related to regulatory approvals, delays in commencement of preclinical and clinical studies, costs associated with Ardea's drug discovery and development programs, and risks related to the outcome of Ardea's business development activities, including collaboration or license agreements. These and other risks and uncertainties are described more fully under the headings "Risk Factors" in Ardea's most recently filed SEC documents, including its Quarterly Report on Form 10-Q for the quarter ended September 30, 2011. All forward-looking statements contained in this press release speak only as of the date on which they were made. Ardea undertakes no obligation to update such statements to reflect events that occur or circumstances that exist after the date on which they were made.