Multiplex PCR for rapid detection of pseudorabies virus, porcine parvovirus and porcine circoviruses

Veterinary Microbiology
Chienjin HuangMaw-Sheng Chien

Abstract

A multiplex PCR (mPCR) assay was developed and subsequently evaluated for its effectiveness as a means to simultaneously detect multiple viral infections of swine. Specific primers for each of four common DNA viruses, namely, pseudorabies virus (PRV), porcine circovirus type I (PCV1), porcine circovirus type II (PCV2), and porcine parvovirus (PPV), were used for testing procedure. The assay was shown to be highly sensitive in that as little as 10(-4) ng of each of the respective amplicons (approximately equal to 10,000 molecules) was detected when a composite of all four viruses (including both field and gene-deleted permutations of PRV) was tested as a single sample. It was also effective for detecting one or more of these same viruses in various combinations in specimens including lymph nodes, lungs, spleens, and tonsils collected from clinically ill pigs, and in specimens in spleen collected from aborted fetuses. The relative efficiency (compared to performing separate assays for each virus) and apparent sensitivity of mPCR suggest its potential application for routine molecular diagnostic purposes.

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Citations

Feb 27, 2007·Journal of Zhejiang University. Science. B·Zong-zhao YangWei-huan Fang
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