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Related Experiment Videos

Correct samples for diagnostic tests in sexually transmitted diseases: which sample for which test?

A Stary1

  • 1Outpatient's Center for Infectious Venero-dermatological Diseases and Fungal Infections, Vienna, Austria.

FEMS Immunology and Medical Microbiology
|August 6, 1999
PubMed
Summary

New DNA amplification tests, including polymerase chain reaction (PCR) and ligase chain reaction (LCR), offer reliable diagnosis for genital chlamydia infections. These sensitive methods can detect chlamydial genes in various samples, including urine, aiding public health control programs.

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Area of Science:

  • Molecular biology
  • Infectious disease diagnostics
  • Public health microbiology

Background:

  • Genital chlamydial infections are a significant public health concern.
  • Accurate and sensitive diagnostic methods are crucial for effective control programs.
  • Traditional diagnostic methods may have limitations in sensitivity or require invasive sampling.

Purpose of the Study:

  • To evaluate the utility of DNA amplification techniques for diagnosing genital chlamydial infections.
  • To assess the sensitivity and specificity of polymerase chain reaction (PCR) and ligase chain reaction (LCR) for chlamydia detection.
  • To determine the suitability of these methods for screening high-risk populations and non-invasive specimens.

Main Methods:

  • Utilized polymerase chain reaction (PCR) and ligase chain reaction (LCR) for DNA amplification.

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  • Tested various specimen types, including genital samples, urine, and vulval smears.
  • Evaluated the sensitivity and specificity of the amplification assays.

    • Main Results:

    • Amplified DNA technologies (PCR and LCR) demonstrated high sensitivity and specificity.
    • Effective detection of chlamydial genes was achieved in both genital and non-invasive specimens.
    • The reliability of these tests was maintained even with non-invasive sample types.

    Conclusions:

    • DNA amplification techniques (PCR and LCR) are highly reliable for diagnosing genital chlamydial infections.
    • The use of non-invasive specimens like urine enhances patient compliance and screening feasibility.
    • These advanced diagnostic tools are valuable for chlamydia control programs, particularly for screening high-risk individuals.