Students will also mobilize and pass out information on how
to prevent STDs.F. Actual events or results may differ
materially from the Company's expectations, which are subject to a number
of known and unknown risks and uncertainties including but not limited to
changing market conditions, future actions by the U.

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GAITHERSBURG, Md.

About Digene
Digene Corporation (Nasdaq: DIGE), based in Gaithersburg, MD, develops,
manufactures and markets proprietary DNA and RNA testing systems for the
screening, monitoring and diagnosis of human diseases -- with a focus on
women's cancers and infectious diseases.
In order to heighten awareness on a national level, L.

Ushercell is a high molecular weight cellulose sulphate polymer derived
from natural cotton, and has successfully completed numerous Phase I safety
and tolerability trials.

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Augustine College in Raleigh, North Carolina, where members of the varsity
football team the Falcons, will be wearing "got AIDS?" t-shirts as part of the
effort to eradicate HIV/AIDS on their campus all day on April 20.F.

SCHEDULED EVENTS
Saint Augustine College
Raleigh, North Carolina
Varsity football team, the Falcons to wear "got AIDS?" t-shirts on
campus, April 20 , 2005
Contact: Coach Michael E.

CONRAD, located in Arlington, VA, has played an instrumental role in
developing cellulose sulphate with the support of USAID and private
foundations, and in clinical collaboration with Family Health
International, WHO and NIH.S.

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Eastern Daylight Time.) AIDS , the
Black AIDS Institute, the Magic Johnson Foundation, and the Center for Disease
Control and Prevention (CDC) have joined in an effort aimed to educate and
mobilize Black college age students to fight these diseases. AIDS sends to the rest of the world, is that we
have made a choice to live and not die," explains Jonathan Perry, L.

It is estimated that this randomized, blinded Phase II clinical study will
last approximately six months, after which the data will be unblinded and
analyzed.

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F.I.

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St.I.F.

PRESS RELEASE Ushercell Enters International Phase II Trial for Bacterial Vaginosis Treatment and Prevention

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For more
information, visit http://www.
"Although the primary focus of L.polydex.

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com.

In response to the growing number of new sexually
transmitted disease (STD) infections among Black college students, in
particular HIV/AIDS, Leaders In The Fight to Eradicate (L. AIDS is HIV/AIDS awareness, we
feel that good sexual health is essential in the avoidance of contracting
HIV/AIDS or other diseases that may lead to it," said Jon William Patterson , a
student at Payne College and a member of the L.I.I.E.edu

For other planned events , please call (213) 353-3610.blackaids.

The two HIV prevention trials are expected to
last approximately three years, with a further year required to evaluate
the data.

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E."
Overall, it is estimated that half of all the new HIV infections occur
among teenagers and young adults, 25 years and younger.

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I. Food and Drug
Administration or equivalent foreign regulatory authorities as well as
results of pending or future clinical trials.

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College Students Lead Efforts to Fight STDs and AIDS on Historically Black College and University Campuses

E.E.
"The HIV/AIDS epidemic is not over," said Andrea Henry, a senior at St.' Saving Black lives to some
may seem an impossibility and to others an unreasonable charge; but I submit
that sometimes it falls upon us to be great, and L. The Institute interprets public
and private sector HIV policies, conducts trainings, offers technical
assistance, disseminates information and provides advocacy from a uniquely and
unapologetically Black point of view.

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We will not compromise!"
For more information about L.F. Costa
(919) 516-5180 office
(919) 828-9731 fax
mecosta@st-aug.

L. Jose Simoes and Dr.

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Digene to Present at UBS Global Life Sciences Conference

"L.E. BV is also associated with
increased risk of HIV acquisition and transmission.





Polydex Website


"We are delighted that Ushercell continues to show a high safety profile
and broad spectrum antimicrobial activity, securing recommendations from
Dr.

Note: This press release may contain forward-looking statements, within the
meaning of the United States Securities Act of 1933, as amended, and the
United States Securities Exchange Act of 1934, as amended , regarding
Polydex Pharmaceuticals Limited. Other risk factors discussed
in the Company's filings with the United States Securities and Exchange
Commission may also affect the actual results achieved by the Company.

Please visit our website: www.

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digene.
"The message that L.E.

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AIDS executive
committee.
Polydex Pharmaceuticals Limited (NASDAQ: POLXF) is
pleased to announce the commencement of a randomized, blinded Phase II
clinical trial of Cellulose Sulphate (Ushercell), a microbicidal gel which
is being tested for its effectiveness in the treatment of Bacterial
Vaginosis (BV), the most common vaginal disorder among reproductive-age
women, present in 15-25% of gynecologic patients and up to 60% of women
seen at sexually transmitted diseases clinics.

BV is defined as a clinical syndrome in which the normal
lactobacilli-predominant vaginal flora is replaced by an overgrowth of
Gardnerella vaginalis and anaerobic microorganisms.

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A link to UBS's live webcast and recording of Digene's presentation will
be available on the Company's website, http://www. For primary adjunctive screening, it is marketed as both The Digene(R)
HPV Test and the DNAwithPap(R) Test. AIDS speaks to the
power of young people to change the world. AIDS MISSION:
To educate black college students about the causes and effects of
HIV/AIDS, to create a comfortable dialogue about sex and sexuality , to
eradicate HIV/AIDS, to and restore hope in our community. The Institute's mission is to stop the AIDS
pandemic in Black communities by engaging and mobilizing Black institutions
and individuals in efforts to confront HIV.org. Not only is BV a common problem that requires treatment,
Bacterial Vaginosis may also act as a co-factor in the heterosexual
transmission of HIV. Therefore, the impact of Ushercell as a BV treatment
warrants further study.

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digene.com.com. Nowhere is it more
apparent than among young African-Americans," explained Phill Wilson,
executive director of the Black AIDS Institute. Black youth represent
65 percent of HIV/AIDS cases American youth ages 13-19.F. AIDS is evidentiary
support of this generation's greatness.

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This conference will be held at the Grand Hyatt New York.S. http://www.

In a subsequently published report delivered at the 12th Conference on
Retroviruses and Opportunistic Infections in Boston, the results of a
clinical trial conducted by the HIV Prevention Trials Network (HPTN049)
wherein 59 HIV+ women enrolled to assess Changes in Vaginal Flora
Associated with Vaginal Microbicides, 43% of these participants had
Bacterial Vaginosis at the time of enrollment. All participants will be
counseled to use an effective non-barrier method of contraception
throughout the trial. A report could be available as early as late 2006. A Phase II clinical trial for fertility regulation
has recently been completed in the United States and two Phase III trials
to determine efficacy in the prevention of HIV/AIDS, gonorrhea, chlamydia
and herpes 1 and 2 are ongoing in Africa and India.

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For
more information, visit the company's Web site , http://www. A national day
of observance for STD awareness will take place on college campuses around the
country on April 20.I. AIDS, the Black AIDS Institute or to
order "got AIDS?" t-shirts , please call 877-757-AIDS or e-mail
LIFE@Blackaids.

worried transmitted

The recording of
Digene's presentation will be available beginning approximately three hours
after the live presentation ends, and will be archived until October 29, 2005.thehpvtest.F.I. The protocol
for this study has been designed to conform to FDA guidelines. CONRAD, which was established and funded by
USAID at the Eastern Virginia Medical School, has focused on developing
safe, effective, acceptable and affordable methods of contraception and
microbicides for the prevention HIV/AIDS and other sexually transmitted
infections.

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m.I. AIDS is
organizing events across the country and asking students, faculty and
administration officials to wear a special "got AIDS?" t-shirt to increase the
discussion about STDs and generate action and dialogue about the diseases on
college campuses.
AIDS board member.I.

The Purpose:

* To go above + beyond in the effort to unify our campuses + communities

* To take ownership and become leaders in the fight

* Create self and collective accountability

About the Black AIDS Institute
The Black AIDS Institute is a training and mobilization center focused
exclusively on Black people. A BV treatment may represent our
fastest route to the market for Ushercell," he continued.com

transmitted billions

, Digene Corporation
(Nasdaq: DIGE), today announced that Charles Fleischman, President and Chief
Financial Officer, will be presenting at the UBS Global Life Sciences
Conference on Monday, September 26, 2005 at 8:00 a. These brand names do not refer to the
Digene product that tests for several types of the virus commonly referred to
as "low-risk HPV," which are not associated with cervical cancer. Given the relentless toll AIDS is
having on Black communities, it is critical that Black students are getting
involved in efforts to stop the epidemic in our communities.I.F. Lourens Zaneveld to assess its potential as a
treatment for BV, " said George Usher, President and CEO of Polydex.

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Digene's product portfolio also
includes DNA tests for the detection of other sexually transmitted infections,
including chlamydia and gonorrhea, as well as tests for blood viruses.F.E. HIV/AIDS is devastating Black people in both Africa and
America . "Robert Fritz once said, 'If you limit your choices only
to what seems possible or reasonable, you disconnect yourself from what you
truly want, and all that is left is a compromise.E. In an earlier published
study, Ushercell demonstrated a growth-inhibition effect on BV-associated
bacteria in vitro, and the study report concluded with recommendations to
further study the effects of Ushercell as a treatment for BV.

The study will be carried out under the direction of Dr.

Polydex Pharmaceuticals Limited, based in Toronto, Ontario, Canada, is
engaged in the research, development , manufacture and marketing of
biotechnology-based products for the human pharmaceutical market, and also
manufactures bulk pharmaceutical intermediates for the worldwide veterinary
pharmaceutical industry.

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"AIDS in America is rapidly becoming a Black disease.org. By day 14 of that trial ,
89% of the patients with BV that were assigned the use of Ushercell no
longer had BV. "The
second study with equally encouraging indications of BV clearance confirms
the potential we envision for Ushercell.

Polydex has committed the necessary funding to complete this trial, and
CONRAD continues its support in the development of Ushercell by providing
the clinical trial supplies necessary to carry out this trial. Jose Simoes, at
the University of Campinas, Sao Paulo, Brazil, and will involve 60 women
having a clinical diagnosis of BV, and no other sexually transmitted
diseases or reproductive tract infections.

CONRAD and Family Health International are conducting the Phase III HIV
Prevention trials in Africa and India, with funding from USAID and the Bill
and Melinda Gates Foundation.

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The company's hc2 High-Risk HPV DNA
Test(R) is the only test for human papillomavirus approved by the FDA, and is
approved for both follow-up evaluation in women with inconclusive Pap results
and for primary adjunctive screening with the Pap test in women age 30 and
older. Investors
also may contact Charles Fleischman at (301) 944-7000; journalists may contact
Pam Rasmussen, (301) 944-7196. Augustine Falcons to Wear 'Got AIDS?' T-Shirts on Campus

Effort is in Conjunction With National STD Awareness Month

LOS ANGELES, April is National STD Awareness
month in the U.F.
According to the CDC, Black people comprise 12 percent of the United
States population, yet account for half of the new HIV cases reported in the
United States.E.E.

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