Key result
Genetic analysis revealed that North American PCV-2 isolates share 95 to 99% nucleotide sequence identity, and a newly developed PCR-RFLP assay successfully differentiates between PCV-1 and PCV-2 infections.
The study identifies geographic genetic variations in PCV-2 isolates and develops a PCR-RFLP assay to differentiate between nonpathogenic PCV-1 and PMWS-associated PCV-2 infections in pigs.
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Enables PCV-1/PCV-2 differentiation in swine research; leaves open validation before diagnostic adoption.
Fenaux et al. (2000) studied Postweaning Multisystemic Wasting Syndrome (PMWS) in pigs (n=10). Genetic sequencing and PCR-RFLP assay vs. PCV-1 was evaluated on Nucleotide sequence identity and PCR-RFLP differentiation. Genetic analysis revealed that North American PCV-2 isolates share 95 to 99% nucleotide sequence identity, and a newly developed PCR-RFLP assay successfully differentiates between PCV-1 and PCV-2 infections.
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