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PCR assay for detecting porcine cytomegalovirus
1Virology Laboratory, Veterinary Services, Manitoba Agriculture, Winnipeg, Manitoba, Canada R3T 5S6.
Abstract:
This is the first published report of a PCR assay for detecting porcine cytomegalovirus (PCMV), the causative agent of inclusion body rhinitis in pigs. The DNA to be tested was extracted directly from lungs and nasal scrapings of pigs with various clinical syndromes. Fifty-nine percent (74 of 126) of tested pigs with various clinical syndromes were found to be PCR positive for PCMV. It is hoped that veterinary diagnostic laboratories will benefit by using this PCR assay for routine testing and surveillance of PCMV in pigs.
Insights
A new PCR assay can detect porcine cytomegalovirus (PCMV), a cause of respiratory illness in pigs. This assay identified PCMV in 59% of tested pigs, aiding in disease surveillance.
Area of Science:
- Veterinary Virology
- Molecular Diagnostics
- Animal Pathology
Background:
- Porcine cytomegalovirus (PCMV) causes inclusion body rhinitis in pigs.
- Accurate and efficient diagnostic methods are crucial for PCMV surveillance.
- Previous diagnostic approaches for PCMV were limited.
Purpose of the Study:
- To report the development and application of a novel PCR assay for PCMV detection.
- To evaluate the prevalence of PCMV in pigs with clinical signs.
- To provide a tool for veterinary diagnostic laboratories for routine testing.
Main Methods:
- DNA extraction from lung and nasal swab samples of pigs.
- Development and implementation of a Polymerase Chain Reaction (PCR) assay specific for PCMV.
- Analysis of samples from pigs exhibiting diverse clinical syndromes.
Main Results:
- The developed PCR assay successfully detected PCMV DNA.
- PCMV was detected in 59% (74 out of 126) of the tested pigs.
- Infection prevalence was observed across pigs with various clinical presentations.
Conclusions:
- The new PCR assay is effective for detecting PCMV in pigs.
- This assay can be utilized for routine diagnosis and epidemiological surveillance of PCMV.
- Widespread adoption by veterinary laboratories is anticipated to improve disease management.