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Ready to Use Master Mixes

Monoclonal & Polyclonal Antibodies, Antigens & Blockers


For more than 40 years, Meridian Bioscience has been a trusted partner to the diagnostics industry, delivering innovative antibody and antigen solutions for immunoassay development. As one of the world’s leading antibody companies, we offer a catalog of more than 3,000 high-quality antibodies and antigens spanning 325+ infectious diseases, cancer biomarkers, cardiac and metabolic disorders, hormone imbalances, and autoimmune diseases. Backed by deep expertise in virology, cell culture, protein expression, and purification, Meridian produces antibodies and reagents to the highest standards. Our reliable antibody production services are recognized across the industry, with products trusted by scientists and diagnostic developers worldwide. Many of Meridian’s native antigens for ToRCH assays are considered best-in-class, and our antibody solutions are widely used in commercial assays around the globe—helping customers identify the right tools for their unique needs.




Whether for infectious disease detection, cancer biomarker studies, or human monoclonal reagents for therapeutic research, Meridian delivers unmatched quality, reliability, and scalability. From small-batch R&D to large-scale manufacturing, we support every stage of research and diagnostic development.




Our portfolio also includes specialized interference blockers—such as Mouse IgG, GAHG, and our proprietary HAMA blocker—that eliminate HAMA, HA, and RF, addressing common causes of immunoassay interference.

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Why We Are Second To None

We strive to provide our customers with solutions they need when they need it - from novel antigens and antibodies to major disease outbreaks such as Zika and SARS-CoV-2 to pioneering the market with our innovative air-dried qPCR/RT-qPCR mixes. We take pride in providing our customers with unparalleled support, customer service, and quality.

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SARS-CoV-2 Nucleoprotein Antibodies

Antibodies work as a pair and are suitable for use in ELISA, Lateral Flow, and Western Blot. They are capable of detecting the SARS-CoV-2 variant strains Alpha B.1.1.7, Beta B.1.351, Gamma P.1/P.2, and Delta B.1.617.2. They do not cross-react with any other coronavirus except SARS-CoV.

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SARS-CoV-2 Nucleoprotein Antibodies

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Have questions about a product? Want to learn more about Meridian’s molecular or immunoassay reagent portfolio? We want to hear from you!


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