Holzer Holzer & Fistel, LLC Announces That a Class Action Lawsuit Has Been Filed on Behalf of Investors in Genzyme Corp.

ATLANTA, GA--(Marketwire - August 18, 2009) - Holzer Holzer & Fistel, LLC announces that a
class action lawsuit has been filed in the United States District Court for
the District of Massachusetts on behalf of purchasers of Genzyme
Corporation ("Genzyme" or the "Company") (NASDAQ: GENZ) who purchased
shares between June 26, 2008 and July 21, 2009, inclusive (the "Class
Period"). The lawsuit alleges that Genzyme failed to disclose certain
problems it was experiencing at two of its manufacturing facilities. The
complaint alleges that this resulted in significant production problems
that negatively impacted the Company's revenues.

If you purchased shares of Genzyme common stock during the Class Period,
you have the legal right to petition the Court to be appointed a "lead
plaintiff." A lead plaintiff is a representative party that acts on behalf
of other class members in directing the litigation. Any such request must
satisfy certain criteria and be made no later than September 28, 2009. Any
member of the purported class may move the Court to serve as lead plaintiff
through counsel of their choice, or may choose to do nothing and remain an
absent class member. If you are a Genzyme investor and would like to
discuss a potential lead plaintiff appointment, or your rights and
interests with respect to the lawsuit, you may contact Michael I. Fistel,
Jr., Esq., or Marshall P. Dees, Esq. via email at mfistel@holzerlaw.com, or
mdees@holzerlaw.com, or via toll-free telephone at (888) 508-6832.

Holzer Holzer & Fistel, LLC is an Atlanta, Georgia law firm that dedicates
its practice to vigorous representation of shareholders and investors in
litigation nationwide, including shareholder class action and derivative
litigation. More information about the firm is available through its
website, www.holzerlaw.com and upon request from the firm. Holzer Holzer &
Fistel, LLC has paid for the dissemination of this promotional
communication, and Michael I. Fistel, Jr. is the attorney responsible for
its content.