ABOUT CHEMBIO

Chembio Diagnostics, Inc.

FORWARD-LOOKING STATEMENTS

Statements contained herein that are not historical facts may be
forward-looking statements within the meaning of the Securities Act of
1933, as amended.

"
Mignatti comes to Exagen with 33 years of laboratory and kit-based
diagnostics experience, including senior management and sales roles at
Esoterix, Inc."

About Exagen Diagnostics, Inc.

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Chembio
undertakes no obligation to publicly update these forward-looking
statements to reflect events or circumstances that occur after the date
hereof or to reflect any change in Chembio's expectations with regard to
these forward-looking statements or the occurrence of unanticipated events.

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"

Those served by this far-reaching initiative are members of the CHAI
Procurement Consortium, which is currently comprised of 50 countries in
Africa, Asia, Eastern Europe, Latin America and the Caribbean. Chembio is located
at 3661 Horseblock Road, Medford, NY 11763.

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Larry Siebert, President and CEO of Chembio Diagnostics, which is involved
in the development, manufacture and marketing of rapid tests for the
detection of HIV, tuberculosis and other diseases, said: "The missions of
Chembio and CHAI, to help wipe out the scourge of AIDS worldwide, are
closely aligned. Exagen CEO Jim
McClintic , who joined the company in October, will continue to guide the
company's strategic direction.exagendiagnostics .com.

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The announcement was made today at a press conference in which President
Clinton and members of his CHAI team discussed the importance of reaching
out to those in need by ramping up the availability of rapid tests for
AIDS, while keeping the costs affordable.
"This is an exciting business opportunity because Exagen will be launching
the first IVD kits to detect changes in DNA copy number in tumor tissue to
predict risk of recurrence for both hormone receptor (HR)-positive and
HR-negative breast cancer patients," said Mignatti.

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"It's also a privilege to
help lead the commercialization of a scientific advancement that has the
potential to significantly improve the quality of life for people with serious
diseases.

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Securities and Exchange
Commission. He oversees
Exagen's day-to-day operations, as well as company alliances.
"Our mission is to focus innovative genomic and computational science on
creating leading-edge markers and tests that individualize patient care
worldwide," said McClintic. and
Baxter International.

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As part of an effort to help improve the lives
of the estimated 40 million people worldwide living with HIV, 90% of whom
are not even aware they are
HIV-infected, Chembio Diagnostics, Inc. Actual results,
events, or performance may differ materially from the above forward-looking
statements due to a number of important factors , and will be dependent upon
a variety of factors, including, but not limited to Chembio's ability to
obtain additional financing and the demand for Chembio's products.
As an emerging leader in the development of prognostic and predictive in
vitro diagnostic (IVD) kits, Exagen Diagnostics is uniquely able to discover,
validate and productize small sets of genomic markers for use in oncology ,
infectious disease and other indications.

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(Chembio) possesses expertise in the development
and manufacturing of rapid test products for various infectious diseases,
including HIV, Tuberculosis and Chagas Disease.

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The
HIV-infected populations in these countries account for three-quarters of
the global need for anti-retroviral treatment.M.
for $150 million.

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Factors that may impact Chembio's success are more fully disclosed in
Chembio's most recent public filings with the U., Allergy Testing Laboratory, Kallestad Diagnostics, Inc.

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For more information, visit
http://www.

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References to Chembio
Diagnostics, Inc.

Exagen Diagnostics Names Robert Mignatti President and Chief Operating Officer

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PRESS RELEASE Chembio Diagnostics Selected by President Clinton's HIV/AIDS Initiative to Make Available Rapid HIV Test Kits to 50 Countries on 4 Continents

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It was estimated that, to reach treatment targets, at
least 200 million HIV tests will be necessary over the next four years.

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;
the 100%-owned subsidiary of Chembio Diagnostics, Inc. Forward-looking statements include statements regarding
the intent, belief or current expectations of the Company and its
management.

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President Clinton explained that
Chembio and the three other chosen companies are helping to make this
possible through their reasonable pricing and proficiency in the face of
this enormous need. Such statements reflect management's current views, are based
on certain assumptions and involve risks and uncertainties .

Products and devices for home health testing or monitoring.

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S., Exagen Diagnostics, Inc.
Last year , McClintic and Mignatti led the sale of Esoterix to LabCorp, Inc.

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may actually refer to Chembio Diagnostic Systems, Inc. ALBUQUERQUE, N., which
develops and commercializes genomic marker-based in vitro diagnostic (IVD)
kits for prognosis and prediction of treatment response, today announced that
Robert Mignatti has joined the company as president and COO. "Bob's expertise in business development and
planning , strategic partnerships and acquisitions, and developing key
personnel makes him a very strong asset as we build the management team that
will elevate Exagen to its next phase of growth. Exagen aims to commercialize IVD
kits that can be performed by existing diagnostic laboratories and to develop
tests that accompany the launch of new therapeutics and/or support
pharmaceutical R+D/Phase IV .

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(OTC BB: CEMI) has been selected by
the Clinton Foundation HIV/AIDS Initiative ("CHAI"), spearheaded by former
President Bill Clinton, to make available rapid HIV tests that will be used
to detect the infection easily and cost effectively. Thus we are extremely proud to be part of the Clinton HIV
initiative, working with such a dedicated leader as President Clinton, his
team, and our fellow companies in this critical initiative. At Esoterix, which provides specialty value-added
laboratory testing information services, Mignatti served as executive vice
president and COO, working directly with McClintic for the past five years.