bioMérieux - Information on 2011 sales objective

Marcy l’Etoile (France) - December 7, 2011. bioMérieux, a world leader in the field of in vitro diagnostics,announces that, based on preliminary data, sales growth at constant exchange rates, for the eleven months ended November 30, 2011, amounted to 5.5%, with 3.4% organic growth. The deteriorating market conditions are impacting the acceleration of sales expected at the end of the year.

The Group, which has close to half of its sales in Western Europe, is faced with a slowdown of the region’s economy and budget austerity measures in Southern Europe. However, sales remain solid in North America and growth is dynamic in the Emerging 7*. Clinical Microbiology, which accounts for more than 50% of bioMérieux’s sales, continues to grow faster than the market and to gain market share**.

bioMérieux anticipates a strong month of December, which would make it possible to forecast 2011 organic sales growth of 4.5%. However, in light of the sales growth recorded at the end of November and of uncertainties about how market conditions will evolve, this growth could be difficult to reach and therefore,2011 organic growth could be between 3.5% and 4.5%. Including the recent acquisitions of AES Laboratoire and ARGENE, overall growth for 2011 could be between 5.5% and 6.5%, at constant exchange rates.

“bioMérieux is facing an economic environment in Western Europe that is deteriorating more rapidly and dampening our growth. However, our teams are focused more than ever on reaching our objectives and our broad international footprint and the confirmed success of our core business, clinical microbiology, are significant assets,” stated Jean-Luc Bélingard, Chairman and Chief Executive Officer.

INVESTOR CALENDAR

January 24, 2012: Fourth-quarter 2011 sales - After the close of trading

The above forward-looking statements are based, entirely or partially, on assessments or judgments that may change or be modified, due to uncertainties and risks related to the Company's economic, financial, regulatory and competitive environment, notably those described in
the 2010 Registration Document. Accordingly, the Company cannot give any assurance nor make any representation as to whether the above objectives will be met. The Company does not undertake to update or otherwise revise any forecasts or objectives presented herein, except in
compliance with the disclosure obligations applicable to companies whose shares are listed on a stock exchange.

* Brazil, China, India, Indonesia, Mexico, Russia and Turkey
** Based on bioMérieux estimates