ADVISORY/ZLB Bioplasma Inc. Supports Prevention of West Nile Virus Transmission, Assures Public Its Plasma-Derived Products Are Safe.

Business Editors & Health/Medical Writers

ADVISORY...

--(BUSINESS WIRE)

WHO:   ZLB Bioplasma Inc. is a major source of intravenous
       immunoglobulin -- IVIG -- and other specialty plasma-derived
       products for the U.S. market. The company secures its blood
       plasma from U.S. collection centers for U.S. products
       manufactured by its affiliate company, ZLB Bioplasma AG.

WHAT:  ZLB Bioplasma supports the American Red Cross and American
       Blood Centers in their efforts to assure the public that any
       potential transmission of West Nile Virus (WNV) through blood
       or blood products will be strictly avoided.

       In accordance with ZLB Bioplasma's strict safety standards, the
       company has always screened and will continue to screen its
       plasma to prevent the introduction of pathogens into the
       manufacturing process.

       ZLB Bioplasma also supports guidance from the U.S. Food and
       Drug Administration stating that current viral reduction
       methods, including ZLB Bioplasma's, have been validated to
       inactivate flaviviruses related to WNV.

       ZLB's manufacturing processes eliminate lipid-enveloped
       viruses, which include WNV, should they pass undetected into
       ZLB's product manufacturing process. The company's data shows
       that ZLB's processing methods effect a more than 15-log
       reduction of viruses structurally similar to WNV. (See ZLB
       Bioplasma press release, also dated Dec. 16, 2002, for more
       information.)

       The company expects no interruption to product manufacturing or
       supply in the event of plasma withdrawals by collection
       centers.

WHY:   A pioneer in the manufacturing of plasma-derived products and
       the first company to market IVIG in 1979, ZLB is assuring
       physicians, nurses, pharmacists, patients and business partners
       that its products are safe, effective and free of the danger of
       contamination by WNV.

WHEN:  December 16, 2002

For more information, contact ZLB Bioplasma Inc. at 818/244-2952.