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Welcome to Immundiagnostik, Inc.

We are the North American subsidiary of Immundiagnostik AG.

We discover solutions on the cutting edge of science and provide reliable detection tools for laboratories to apply toward improved clinical outcomes.

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The IDK® Gluten Fecal ELISA yellow kit box.
Featured Product

IDK® Gluten Fecal ELISA (Quantitative)

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A yellow Immundiagnostik ELISA kit box with a white label that says, "ox-LDL ELISA".
CARDIOVASCULAR & RENAL

Oxidized LDL ELISA (ox-LDL)

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A yellow Immundiagnostik ELISA kit box with a white label that says, "1,25-(OH)2-Vitamin D ELISA".
Bone & Mineral Metabolism

1,25 (OH)2 Vitamin D ELISA

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A yellow Immundiagnostik ELISA kit box with a white label that says, "IDK® EDN ELISA".
Immunology

IDK® EDN ELISA

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A yellow Immundiagnostik ELISA kit box with a white label that says, "Histamine Elimination Ratio (HERO) ELISA".
Complementary Health

Histamine Elimination Ratio (HERO) ELISA

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Join us at the ADLM 2025 Clinical Lab Expo

July 29-31, 2025 • McCormick Place - Chicago, IL

Booth # 2240

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Other Services

Our team provides guidance throughout the process, from your initial consultation to on-site training and continued remote support.

Validation Assistance Services

Expert-guided assay validation assistance services tailored to your lab’s needs.

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The IDKExtract® Stool Collection Tubes Bulk Pack (2000 count) placed next to 20 regular kits.

Custom Bulk Packaging

Reduce your lab's environmental impact, maximize storage space, and increase efficiency at a lower cost.

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Technical Support

Technical Support

From general product and procedure questions to in-person support, our team is here to assist you.

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Our Team

Terry Fisher, Chief Operations Officer at Immundiagnostik, Inc., smiling in front of a white brick wall.

Terry Fisher

Chief Operating Officer

Jen Mayes, Chief Commercial Officer at Immundiagnostik, Inc., smiling in front of a white brick wall.

Jennifer Mayes

Chief Commercial Officer

Antonio O'Ferral, Regional Sales Director NE & SW at Immundiagnostik, Inc., smiling in front of a white brick wall.

Antonio O'Ferral

Regional Sales Director, NE & SW

Derek Abbott, Regional Sales Director NW & SE at Immundiagnostik, Inc., smiling in front of a white brick wall.

Derek Abbott

Regional Sales Director, NW & SE

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Closing the Gaps in Laboratory Diagnostics

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Terry Fisher

Chief Operating Officer
Terry Fisher, Chief Operations Officer at Immundiagnostik, Inc., smiling in front of a white brick wall.

“Do what you can not to prove them wrong, but to prove to yourself it’s possible.”

Team dynamics have been a driving force throughout Terry Fisher’s life and professional career. He is a purpose-driven leader who has held positions at the U.S. Department of Commerce, IDEXX Laboratories, and ALPCO and has also studied in Poland and Turkey. Terry’s diverse experience equipped him with the diplomacy and negotiation skills needed to consider everyone’s goals and work as a team.

As Immundiagnostik’s Chief Operating Officer, Terry is dedicated to doing the right thing for his clients and employees. He savors the challenge of growing something out of nothing, particularly when others may not believe in his vision. To Terry, it is not about proving your critics wrong but about proving to yourself that you can accomplish anything you desire.

Outside the office, you can find Terry spending time in nature with his family or cheering them on from the sidelines at one of their various sports. He looks forward to collaborating with others in the industry to discover new solutions that benefit everyone, from development to individual care.

Jennifer Mayes

Chief Commercial Officer
Jen Mayes, Chief Commercial Officer at Immundiagnostik, Inc., smiling in front of a white brick wall.

“It’s in my DNA to help people solve problems.”

Building genuine, human relationships has been Jennifer Mayes’ guiding light all her life. Growing up in rural New Hampshire, Jen was taught the values of teamwork and fearless leadership from an early age by her family. These beliefs, combined with her energetic and engaging personality, allowed her to become a natural-born leader.

Jen has held Sales leadership roles at Janssen (then Johnson & Johnson), LabCorp, Seacoast Pathology (Aurora Diagnostics), ALPCO, and Enzo Life Sciences. Her professional experience has helped her understand how the life science research, laboratory diagnostic, and healthcare industries are connected and support one another.

Today, as our Chief Commercial Officer at Immundiagnostik, Inc., Jen describes herself as someone who is unable to check out when challenges arise. She is passionate about helping people solve problems and moving forward in a collaborative way that benefits all. To Jen, that means sometimes going against the grain to do the right thing.

Jen most cherishes time spent with her daughters. She also loves music, being outside in nature, traveling, and experiencing new places and people. Someday, Jen looks forward to sharing her professional experience and personal values with others by mentoring young entrepreneurs.

Antonio O'Ferral

Regional Sales Director, NE & SW
Antonio O'Ferral, Regional Sales Director NE & SW at Immundiagnostik, Inc., smiling in front of a white brick wall.

“Radiating a powerful, positive presence engages and inspires others around you.” 

Dedicated to forging meaningful connections and tackling challenges head-on, Antonio O’Ferral epitomizes the essence of a dynamic sales leader. With a background entrenched in teamwork and perseverance, Antonio’s journey is marked by an unwavering commitment to excellence.

As a graduate of the University of Kentucky, where he showcased his leadership skills as a four-year letterman in football, Antonio brings a winning mentality to every endeavor he undertakes. His accomplished career spans organizations like Eli Lilly, Insulet, and Zeus Scientific, where Antonio honed his expertise in navigating the intricate landscape of the life sciences and healthcare industries.

As Regional Sales Director, NE & SW at Immundiagnostik, Inc. and armed with a formidable array of strengths, including communication, competition, and being an activator and relator, Antonio is relentless in pursuing solutions that benefit all stakeholders. His innate ability to connect with others and his strategic vision make him invaluable in driving growth and fostering innovation.

Antonio is not just a dedicated professional but also a family man. Alongside his supportive wife and family, he finds solace in spending quality time with them, reveling in their triumphs, and pursuing his passion for golf.

Derek Abbott

Regional Sales Director, NW & SE
Derek Abbott, Regional Sales Director NW & SE at Immundiagnostik, Inc., smiling in front of a white brick wall.

“You won’t master the rest of your life in one day. Just relax. Master the day. Then just keep doing that every day.”

As Regional Sales Director, NW & SE at Immundiagnostik, Inc., Derek Abbott brings over a decade of experience in the life science industry, with a strong foundation in scientific research. Before his commercial career, he spent eight years in the laboratory, gaining valuable insights into the needs of researchers and lab professionals.

Derek’s sales career began at smaller life science companies, where he honed his skills in providing enzymes, immunoassays, antibodies, and other reagents to support research and discovery. He later joined Danaher, where he focused on supplying custom biologics to the Cell & Gene Therapy and Vaccine markets.

Derek’s technical background and experience in contract manufacturing have fostered a collaborative approach to problem-solving and a commitment to transparent communication. He excels at managing complex situations and is adept at thinking creatively to find innovative solutions.

Outside work, Derek is an avid snowboarder and drummer and coaches his daughters’ soccer teams.

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