The Syphilis Ab Rapid Test Cassette uses a combination of syphilis antigen-colloidal gold conjugate and immobilized syphilis antigen to detect T. pallidum antibodies (IgG, IgM and IgA) qualitatively and selectively in whole blood, serum or plasma. Treponema pallidum is a spirochete bacterium and the causative agent of the venereal disease syphilis.  Its natural course presents in three stages: primary, secondary and tertiary or late syphilis with long periods of latency or inactive disease. Primary syphilis infection is defined by the presence of a chancre at the site of inoculation. The antibody response to the T. pallidum bacterium can be detected within 4 to 7 days after the chancre appears and remains detectable until the patient receives adequate treatment.

Zhejiang Orient Gene Biotech Co., Ltd specializes in the R&D, production, and sales of in vitro diagnostic products in the field of high-end medical equipment and devices.
Currently, its main products are POCT instant diagnostic reagents, which are mainly used in the detection of infectious diseases (including COVID-19 detection products), drugs of abuse, fertility, tumor marker and cardiac marker detection, among which infectious disease and drugs of abuse detection are the two core product series of the company.
The company’s sales network has been extended to more than 120 countries and regions, and its overseas sales revenue accounted for 95% in 2019. At present, the company has obtained more than 300 overseas certifications/records, and more than 70 domestic registration/record certificates.