Accentia Biopharmaceuticals Inc : Biovest to Present on BiovaxID® Personalized Lymphoma Vaccine at San Francisco Cancer Biologics Conference

Biovest International, Inc. (OTCQB: BVTI), a majority-owned subsidiary of Accentia Biopharmaceuticals, Inc. (OTCQB: "ABPI"), today announced that Biovest is scheduled to present at 19thInternational Molecular Med Tri-Con Cancer Biologics Conference to be held February 19-23 at the Moscone Convention Center in San Francisco.

Biovest's Senior Vice President, Product Development & Regulatory Affairs, Carlos F. Santos, Ph.D., will present on BiovaxID®, the Company's late-stage personalized cancer vaccine for the treatment of non-Hodgkin's lymphoma, in a session titled, "Vaccination with Patient-Specific Tumor-derived Antigen in First Remission Improves Disease-Free Survival in Follicular Lymphoma". If approved, BiovaxID would represent the very first non-immunosuppressive consolidation therapy option for patients with follicular lymphoma.

Event: Molecular Med Tri-Con Cancer Biologics Conference

BVTI Presentation: February 23, 2012 at 11:50 a.m. PST

Where: Moscone North Convention Center, San Francisco, CA

Agenda: http://www.triconference.com/

To meet with Biovest at this event, please contact Douglas Calder at 813-507-2633 or [e-mail].

About BiovaxID®

Biovest's lead drug product is BiovaxID®, an autologous active immunotherapy (personalized cancer vaccine) for the treatment of certain B-cell subtypes of non-Hodgkin's lymphoma, an incurable form of blood cancer. Over the past decade, two Phase II clinical trials and a Phase III clinical trial have demonstrated strong and cumulative evidence with regards to BiovaxID vaccination's safety and efficacy. With regards to safety, all clinical trials to date demonstrate that BiovaxID vaccination is highly safe and poses a nearly vanishingly small toxicity risk relative to approved anti-lymphoma agents. Moreover, BiovaxID provides substantial and durable clinical efficacy with the Phase III clinical trial demonstrating that BiovaxID significantly improves disease-free survival in follicular lymphoma and the Phase II mantle cell lymphoma clinical trial demonstrating that BiovaxID induces strong idiotype-specific T-cell responses which strongly correlate with highly-statistically significant overall survival.

About Biovest International, Inc.

Biovest International, Inc. is an emerging leader in the field of active personalized immunotherapies. In collaboration with the National Cancer Institute, Biovest has developed a patient-specific, cancer vaccine, BiovaxID®, with three clinical trials completed, including a Phase III study, demonstrating evidence of safety and efficacy for the treatment of indolent follicular non-Hodgkin's lymphoma.

Headquartered in Tampa, Florida with its bio-manufacturing facility based in Minneapolis, Minnesota, Biovest is publicly-traded on the OTCQB™ Market with the stock-ticker symbol "BVTI", and is a majority-owned subsidiary of Accentia Biopharmaceuticals, Inc. (OTCQB: "ABPI").

For further information, please visit: http://www.biovest.com

Forward-Looking Statements:

Statements in this release that are not strictly historical in nature constitute "forward-looking statements."Such statements include, but are not limited to statements about BiovaxID®, AutovaxID®, events occurring after dates hereof, and any other statements relating to products, product candidates, product development programs, the FDA or clinical study process including the commencement, process, or completion of clinical trials or the regulatory process.Such statements may include, without limitation, statements with respect to the Company's plans, objectives, expectations and intentions, and other statements identified by words such as "may," "could," "would," "should," "believes," "expects," "anticipates," "estimates," "intends," "plans," or similar expressions.Such forward-looking statements involve known and unknown risks, uncertainties, and other factors that may cause the actual results of Biovest to be materially different from historical results or from any results expressed or implied by such forward-looking statements.These factors include, but are not limited to, risks and uncertainties related to the progress, timing, cost, and results of clinical trials and product development programs; difficulties or delays in obtaining regulatory approval for product candidates; competition from other pharmaceutical or biotechnology companies; and the additional risks discussed in filings with the Securities and Exchange Commission.All forward-looking statements are qualified in their entirety by this cautionary statement, and Biovest undertakes no obligation to revise or update this news release to reflect events or circumstances after the date hereof. The product names used in this statement are for identification purposes only. All trademarks and registered trademarks are the property of their respective owners.