ToRCH Antigen Products 

The commercial leader in the production of ToRCH antigens for over 20 years.

Your Trusted Source for Native ToRCH Antigens

Microbix’s ToRCH antigens panel covers common etiologic agents of congenital infections and abnormalities. Our highly sensitive, specific, and stable native antigens are derived from cell culture-produced whole viruses that are purified and inactivated. 

ToRCH infections covered by our ToRCH antigens include toxoplasmosis, other (varicella-zoster virus, syphilis, and human parvovirus B19), rubella virus, cytomegalovirus, and herpes simplex virus (HSV). 

Proudly Supporting Over 100+ Customers with Leading  Diagnostic Solutions 

“r-Biopharm is pleased that the program will be delivering world-class diagnostic testing to some of the most remote populations in Australia. It has been a privilege to work with the program’s operational team and Microbix to integrate the use of the best possible test and test-workflow controls into the program“

Andreas Simons, Director, Project Management Clinical Diagnostics – r-Biopharm

Setting the Gold Standard for Infectious Disease Diagnostic Standards

Three Decades of Excellence

For almost three decades, our antigens have been of the highest reliability and quality for diagnostic companies worldwide. 

Testing Precision Assured

Our antigen products are excellent positive quality controls for diagnostics assays.

Comprehensive Antigen Panels

Our extensive antigen panels fit any level of immunoassay used in ToRCH screening. 

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Product Name	EL Catalogue Number	Product Description
Toxoplasma gondii, Grade IgG	EL-18-07	Description: Native Toxoplasma gondii antigens are obtained by extracting and subsequently centrifuging Toxoplasma tachyzoites from infected cell cultures. Strain: RH Buffer: 1% Triton x-100, Phosphate Buffered Saline pH 7.4
Toxoplasma gondii, Grade IgM	EL-18-08	Description: Toxoplasma Antigen, IgM Grade is produced by subjecting Toxoplasma tachyzoites to membrane fractionation, which allows for surface antigen isolation, specifically Toxoplasma p30. Strain: RH Buffer: 2% N-octyt–D-glucopyranoside (OGP) in Phosphate Buffered Saline pH 7.4
Rubella BR2S	EL-05-15	Description: The predominant form of the antigen is whole virions suspended in NTE with sucrose. The preparation is free of detergent. Residual non-viral protein may come from host tissue and culture medium. Strain: HPV-77 Buffer: NTE buffer (Sodium chloride, TRIS and EDTA)
Cytomegalovirus, Grade 2	EL-01-02	Description: This preparation contains CMV antigens from all parts of the virus cycle of replication including early and late antigens, nuclear antigen, cytoplasmic antigen, structural and non-structural proteins. The antigen is in GBS without detergent or preservative. This preparation contains residual host cellular material. Strain: AD-169 Buffer: Glycine buffered saline (GBS) pH 9.5
Herpes Simplex 1, Grade 2	EL-02-02	Description: Herpes Simplex 1 Grade 2 antigen contains a high concentration of virus particles and components in tissue culture medium containing a low concentration of bovine serum. The preparation contains no preservative or detergent. Some residual host cellular material is present. Strain: MacIntyre Buffer: Tissue culture medium
Varicella-Zoster, Grade 2	EL-03-02	Description: The resulting antigen preparation contains a high concentration of virus and viral components as well as some cellular material suspended in EMEM with some serum proteins.Strain: VZ-10Buffer: EMEM
EBV Purified Antigen ‘VCA’ (glycoprotein B, gB, BALF4)	EL-16-06	Description: This preparation contains more than 90% virus specific protein. The predominant form of the antigen is purified protein suspended in 20mM Tris-HCl with 3M MgCl,; pH 7.4. The preparation is free of detergent. Any residual non-viral protein comes from host tissue and culture medium. The protein concentration is nominally 0.030 mg/ml. Strain: P3H3 cells infected with EBV Buffer: 20mM Tris-HCl with 3M MgCl2; pH 7.4
EBV Purified Antigen ‘VCA’ (glycoprotein B, gB, BALF4) Concentrate.	EL-16-07	Description: This preparation contains more than 90% virus specific protein. The predominant form of the antigen is purified protein suspended in 20mM Tris-HCl with 3M MgCl2; pH 7.4. The preparation is free of detergent. Residual non-viral protein comes from host tissue and culture medium. This preparation is a more concentrated for of EL-16-06 with a protein concentration is nominally 0.10 mg/ml. Strain: P3H3 cells infected with EBV Buffer: 20mM Tris-HCl with 3M MgCl2; pH 7.4