Why the study?
African swine fever lacks vaccines or treatments, making disease surveillance and stamping out essential for outbreak control.
Does duplex ASF-IC real-time PCR assay improve detection sensitivity and speed compared to singleplex real-time PCR in samples from domestic pigs and wild boars?
Does duplex ASF-IC real-time PCR assay improve detection sensitivity and speed compared to singleplex real-time PCR in samples from domestic pigs and wild boars?
Effect estimate: 0.55-8.4 Ct difference
The duplex ASF-IC real-time PCR assay provides a rapid, sensitive, and reliable molecular tool for ASF virus detection in wild boars and domestic pigs, outperforming singleplex assays.
Optimized duplex PCR may aid ASF surveillance in swine; leaves open need for prospective validation before routine use.
African swine fever (ASF) is a contagious disease of key importance that occurs in wild boar population and domestic pigs. To date, there is no vaccine or treatment available, hence disease surveillance and stamping out in case of an outbreak is the only way to control it. A duplex ASF-IC real-time PCR assay was optimised using field samples obtained in Lithuania and results of singleplex and duplex real-time PCR assays allowing the identification of the ASF virus were compared. The specificity and sensitivity of ASF virus detection was validated using a reference sample of positive and negative virus nucleic acid and ASF virus positive and negative samples obtained from animals in Lithuania. Results prove that duplex ASF-IC real-time PCR assay provides a rapid, sensitive, and reliable molecular tool for ASF virus detection in wild boar population and domestic pigs. In general, it was found that duplex ASF-IC real-time PCR assay proves to be faster and more sensitive than singleplex real-time PCR and therefore has a high potential to be applied in routine analysis.
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Pilevičienė et al. (2020) studied African swine fever virus. Duplex ASF-IC real-time PCR assay vs. Singleplex real-time PCR assay was evaluated on Difference in threshold cycle (Ct) values (0.55-8.4 Ct difference).
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