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Related Experiment Videos

SARS coronavirus detection methods.

Susanna K P Lau1, Xiao-Yan Che, Patrick C Y Woo

  • 1Department of Microbiology, University of Hong Kong, Hong Kong Special Administrative Region, People's Republic of China.

Emerging Infectious Diseases
|July 19, 2005
PubMed
Summary
This summary is machine-generated.

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Quantitative reverse transcription-polymerase chain reaction demonstrated higher sensitivity for detecting severe acute respiratory syndrome (SARS) in clinical samples compared to antigen capture enzyme-linked immunosorbent assays.

Area of Science:

  • Virology
  • Clinical Diagnostics
  • Molecular Biology

Background:

  • Severe acute respiratory syndrome (SARS) poses a significant public health challenge.
  • Accurate and sensitive diagnostic methods are crucial for controlling SARS outbreaks.

Purpose of the Study:

  • To compare the diagnostic sensitivity of quantitative reverse transcription-polymerase chain reaction (RT-PCR) with antibody-based antigen capture enzyme-linked immunosorbent assays (ELISAs) for SARS detection.

Main Methods:

  • Clinical samples (fecal and urine) from SARS patients were analyzed.
  • Quantitative RT-PCR was performed.
  • Polyclonal and monoclonal antibody-based nucleocapsid antigen capture ELISAs were conducted.

Main Results:

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  • Quantitative RT-PCR showed higher sensitivity: 80% for fecal samples and 25% for urine samples.
  • Polyclonal antibody-based ELISA sensitivity was 50% (fecal) and 5% (urine).
  • Monoclonal antibody-based ELISA sensitivity was 35% (fecal) and 8% (urine).

    • Conclusions:

    • Quantitative RT-PCR is a more sensitive method for detecting SARS in clinical samples than antigen capture ELISAs.
    • The findings suggest RT-PCR should be prioritized for SARS diagnosis, especially when using fecal samples.