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Related Experiment Video

Updated: Jun 20, 2026

Using a Pan-Viral Microarray Assay (Virochip) to Screen Clinical Samples for Viral Pathogens
13:45

Using a Pan-Viral Microarray Assay (Virochip) to Screen Clinical Samples for Viral Pathogens

Published on: April 27, 2011

Development of a consensus microarray method for identification of some highly pathogenic viruses.

Kang Xiao-Ping1, Li Yong-Qiang, Sun Qing-Ge

  • 1State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing 100071, China.

Journal of Medical Virology
|September 24, 2009
PubMed
Summary

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A novel microarray method effectively detects multiple pathogenic viruses, including Chikungunya and Dengue. This sensitive approach aids in rapid virus identification and diagnosis, addressing the lack of established consensus detection methods.

Area of Science:

  • * Virology
  • * Molecular Biology
  • * Infectious Diseases

Background:

  • * Highly pathogenic viruses like Chikungunya, Dengue, and H5N1 avian influenza cause severe diseases.
  • * Current consensus methods for detecting these viruses are not well-established, hindering effective diagnosis.
  • * A need exists for rapid, sensitive, and reliable diagnostic tools for diverse viral pathogens.

Purpose of the Study:

  • * To develop and validate a rapid and sensitive microarray approach for detecting multiple highly pathogenic viruses.
  • * To design specific oligonucleotide probes for identifying various virus genera and species.
  • * To establish a robust method for viral diagnosis applicable to unknown isolates.

Main Methods:

  • * Design of genus-level (70-mer) and species-level (50-mer) oligonucleotide probes for viral detection.

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  • * Utilization of consensus genus primers for specific reverse transcription of viral genomes, minimizing host genome interference.
  • * Synthesis of second-strand cDNA using random primers, followed by labeling and microarray analysis.

    • Main Results:

    • * The microarray method effectively identified Chikungunya virus, Japanese encephalitis virus, Yellow fever virus, Dengue virus, Tick-borne encephalitis virus, and H5N1 avian influenza virus.
    • * The method demonstrated high sensitivity and specificity in detecting target viruses.
    • * An unknown virus isolated from a pig brain in Shanxi Province, China, was successfully identified using this approach.

    Conclusions:

    • * The developed microarray-based method offers a sensitive and effective means for detecting a range of highly pathogenic viruses.
    • * This technique shows significant potential for the rapid diagnosis of viral infections and identification of novel viral agents.
    • * The use of consensus primers and specific probes enhances the accuracy and reliability of viral detection.