Current trends in donor testing to detect syphilis infection.

Area of Science:

• Infectious Diseases
• Clinical Diagnostics
• Transplantation Immunology

Background:

• Organ and tissue donation requires rigorous screening for infectious agents.
• Treponema pallidum (T. pallidum) is the bacterium causing syphilis, a significant concern in donor populations.
• Accurate syphilis detection is vital to prevent transmission during transplantation.

Purpose of the Study:

• To review syphilis testing strategies for organ and tissue donors.
• To discuss factors influencing the selection and interpretation of syphilis assays.
• To highlight the principles of available serologic tests for donor screening.

Main Methods:

• Review of serologic assay principles for syphilis detection.
• Analysis of treponemal and nontreponemal assay characteristics.
• Discussion of syphilis testing algorithms in donor settings.

Main Results:

• Serologic assays are the primary method for syphilis screening in donors.
• Both treponemal and nontreponemal assays have distinct advantages and limitations for donor testing.
• Clinical diagnostic syphilis testing algorithms provide a framework for donor assay selection.

Conclusions:

• Appropriate selection of syphilis assays is critical for organ and tissue donor safety.
• Understanding assay principles and limitations improves the interpretation of results.
• Effective donor screening protocols minimize the risk of syphilis transmission through transplantation.