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Field Postmortem Rabies Rapid Immunochromatographic Diagnostic Test for Resource-Limited Settings with Further Molecular Applications
Published on: June 29, 2020
Molecular diagnostic of syphilis
Luis Otero Guerra1, Fernando Vázquez Valdés2
1Servicio de Microbiología, Hospital Universitario de Cabueñes, Gijón, España; Grupo de Microbiología Translacional, Instituto de Investigación Sanitaria del Principado de Asturias (ISPA); Grupo de Estudio de Infecciones de Transmisión Sexual. GEITS, SEIMC.
Molecular diagnostics offer valuable tools for syphilis detection, aiding in congenital syphilis diagnosis and tracking infection origins. However, polymerase chain reaction (PCR) shows limited effectiveness for neurosyphilis detection.
Area of Science:
- Infectious Diseases
- Microbiology
- Molecular Diagnostics
Background:
- Syphilis, caused by Treponema pallidum subsp. pallidum, is a growing global health concern.
- Current diagnosis relies heavily on serology, with limitations in direct microscopic methods.
- Molecular techniques present emerging diagnostic and epidemiological applications.
Purpose of the Study:
- To evaluate the utility of molecular biology techniques in syphilis diagnosis and epidemiology.
- To assess the effectiveness of molecular methods across different clinical presentations and sample types.
- To explore the role of molecular techniques in understanding syphilis origins and antimicrobial resistance.
Main Methods:
- Review of molecular biology techniques for Treponema pallidum detection.
- Analysis of molecular diagnostic performance in primary, secondary, congenital, and neurosyphilis.
- Application of molecular typing for epidemiological investigations.
- Detection of macrolide resistance mutations using molecular methods.
Main Results:
- Molecular techniques are effective for diagnosing primary, secondary, and congenital syphilis.
- Polymerase chain reaction (PCR) demonstrates low sensitivity in cerebrospinal fluid for neurosyphilis diagnosis.
- Molecular typing aids in elucidating syphilis epidemiology and tracing its origins.
- High prevalence of macrolide resistance mutations detected through molecular analysis.
Conclusions:
- Molecular diagnostics are a valuable adjunct to serology for syphilis detection, particularly in specific stages.
- Limitations exist for neurosyphilis diagnosis via PCR, necessitating alternative approaches.
- Molecular methods are crucial for epidemiological surveillance, outbreak investigation, and resistance monitoring.
- The rise in macrolide resistance highlights the importance of molecular surveillance.
