Related Experiment Videos
Quantitative fluorogenic PCR assay for measuring ovine herpesvirus 2 replication in sheep
D Hüssy1, N Stäuber, C M Leutenegger
1Institute of Virology, University of Zurich, Zurich, Switzerland.
Clinical and Diagnostic Laboratory Immunology
|January 4, 2001
Summary
A new fluorogenic PCR assay accurately detects ovine herpesvirus 2 (OvHV-2) DNA. This method allows for the first time quantitative characterization of OvHV-2 replication in infected sheep.
Area of Science:
- Veterinary Virology
- Molecular Diagnostics
- Ovine Pathology
Background:
- Ovine herpesvirus 2 (OvHV-2) causes significant health issues in sheep.
- Accurate quantification of viral load is crucial for understanding disease progression.
- Existing diagnostic methods may lack the sensitivity or quantitative capabilities needed.
Purpose of the Study:
- To develop and validate a sensitive fluorogenic PCR assay for ovine herpesvirus 2 (OvHV-2) DNA detection.
- To establish a method for normalizing viral DNA quantity using genomic sheep DNA.
- To enable quantitative characterization of OvHV-2 replication in naturally infected animals.
Main Methods:
- Development of a specific fluorogenic PCR for OvHV-2 DNA.
- Development of a second fluorogenic PCR for normalizing with genomic sheep DNA.
- Validation using 152 blood samples and comparison with conventional seminested PCR.
Main Results:
- The fluorogenic PCR showed 100% concordance with conventional PCR in 152 tested samples.
- Analytical sensitivity ranged from 1 to 10 copies of target DNA per reaction.
- Quantification of OvHV-2 DNA relative to sheep genomic DNA was achieved over 7 orders of magnitude.
Conclusions:
- A robust and sensitive fluorogenic PCR assay for OvHV-2 has been developed.
- The normalization method allows for accurate, quantitative assessment of viral replication.
- This technique provides a novel tool for studying OvHV-2 pathogenesis in sheep.