A molecular survey and phylogenetic analysis of porcine circovirus type 3 using oral fluid, faeces and serum

Plut, Jan (author), Jamnikar Ciglenečki, Urška (author), Golinar, Irena (author), Knific, Tanja (author), Štukelj, Marina (author)

Background: Porcine circovirus type 3 is the most recently discovered porcine circovirus, and an emerging pathogen. In this study the status of its presence on some Slovenian farms is reported. The effectiveness of thevaccine against porcine circovirus type 2 was assessed against porcine circovirus type 3. Group samples of oral fluid, faeces and individual serum samples were taken from six different pig categories andtested for presence of viral DNA, using both real time and conventional PCR. Positive samples were subjected todirect Sanger sequencing. Nucleotide sequences were analyzed and compared to GenBank PCV3 sequences. Results: Positive samples were sent for genome sequencing, which confirmed the presence of virus in all differentpig categories on five farms. A high to moderate correlation of strong statistical significance was found betweenindividual serum samples, oral fluid and faeces. Slovenian PCV3 was found to be distributed in a way similar to thatof other countries. Slovenian PCV3 nt sequences are highly related, sharing more than 99.5% nt identity. On onefarm a commercially available vaccine against porcine circovirus type 2 was used on 3-week-old pigs. It did notaffect the presence of porcine circovirus type 3 in oral fluid or sera of any of the seven age groups of pigs, eachwith two control groups. Conclusions: The results constitute the first discovery of the virus in Slovenia. Genome sequencing has revealed ahigh degree of similarity between Slovenian and GenBank isolates.

• Language: English
• Keywords: viral disease, pig oral fluid, faeces, serum, PCV3, PCR, first report, Slovenia, Circoviridae infections - virology - veterinary, polymerse chain reaction - methods, phylogeny, genome viral - genetics, sequence analysis, DNA, swine
• Work type: Article
• Typology: 1.01 - Original Scientific Article
• Organization: VF - Veterinary Faculty
• Publication status: Published
• Publication version: Version of Record
• Year: 2020
• Number of pages: 9 str.
• Numbering: Vol. 16, art. 281
• PID: 20.500.12556/RUL-118032
• UDC: 636.4.09:616:57.08
• ISSN on article: 1746-6148
• DOI: 10.1186/s12917-020-02489-y
• COBISS.SI-ID: 24828675
• Publication date in RUL: 14.08.2020

Record is a part of a journal

• Title: BMC veterinary research
• Publisher: BioMed Central.
• ISSN: 1746-6148
• COBISS.SI-ID: 515674393

Licences

• License: CC BY 4.0, Creative Commons Attribution 4.0 International
• Link: http://creativecommons.org/licenses/by/4.0/
• Description: This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.
• Licensing start date: 10.08.2020

Projects

• Funder: ARRS - Slovenian Research Agency
• Project number: P4-0092
• Name: Zdravje živali, okolje in varna hrana