Evidence map›Paper›PMID 26311322›Full record

ArticleVirology journal2015

Revisiting the taxonomical classification of Porcine Circovirus type 2 (PCV2): still a real challenge.

Giovanni Franzo, Martí Cortey, Alex Olvera, Dinko Novosel, Alessandra Marnie Martins Gomes De Castro, Philippe Biagini, Joaquim Segalés, Michele Drigo

Open access · goldAbstract read
In one paragraph

Article in Virology journal, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 40 papers.

0numbers the graph read from it
0cells of the map it votes in
40citing papers in PubMed
16.5field-weighted citation impact, top 1% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

40 citing papers in PubMed, 76 citations in OpenAlex.

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  19. GenotypingViruses · 2020
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors at 7 institutions in 6 countries.

Giovanni FranzoDepartment of Animal Medicine, Production and Health (MAPS), University of Padua, Viale dell'Università 16, Legnaro, PD, 35020, Italy. giovanni.franzo@unipd.it.
Martí CorteyThe Pirbright Institute, Pirbright, Woking, UK. marti.cortey@irta.cat.
Alex OlveraIrsiCaixa - HIVACAT, Badalona, Spain. alex.olvera@cresa.uab.cat.
Dinko NovoselDepartment of Pathology, Croatian Veterinary Institute, Zagreb, Croatia. dinko.novosel@gmail.com.
Alessandra Marnie Martins Gomes De CastroDepartment of Preventive Veterinary Medicine and Animal Health, College of Veterinary Medicine, University of Sao Paulo, Brazil/College of Veterinary Medicine, United Metropolitan College complex (FMU), Sao Paulo, Brazil. alessandramarnie@gmail.com.
Philippe BiaginiUnité de Virologie Moléculaire, Emergence et Co-évolution Virale UMR CNRS, Marseille, 7268, France. philippe.biagini@efs.sante.fr.
Joaquim SegalésUAB, Centre de Recerca en Sanitat Animal (CReSA, IRTA-UAB), Campus de la Universitat Autònoma de Barcelona, Barcelona, Bellaterra, 08193, Spain. joaquim.Segales@irta.cat.
Michele DrigoDepartment of Animal Medicine, Production and Health (MAPS), University of Padua, Viale dell'Università 16, Legnaro, PD, 35020, Italy. michele.drigo@unipd.it.
University of Padua · ITCentre de Recerca en Sanitat Animal · ESCentre National de la Recherche Scientifique · FRCentro Universitário das Faculdades Metropolitanas Unidas · BRCroatian Veterinary Institute · HRIrsiCaixa · ESThe Pirbright Institute · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundPCV2 has emerged as one of the most devastating viral infections of swine farming, causing a relevant economic impact due to direct losses and control strategies expenses. Epidemiological and experimental studies have evidenced that genetic diversity is potentially affecting the virulence of PVC2. The growing number of PCV2 complete genomes and partial sequences available at GenBank questioned the accepted PCV2 classification.

methodsNine hundred seventy five PCV2 complete genomes and 1,270 ORF2 sequences available from GenBank were subjected to recombination, PASC and phylogenetic analyses and results were used for comparison with previous classification scheme.

resultsThe outcome of these analyses favors the recognition of four genotypes on the basis of ORF2 sequences, namely PCV2a, PCV2b, PCV2c and PCV2d-mPCV2b. To deal with the difficulty of founding an unambiguous classification and accounting the impossibility to define a p-distance cut-off, a set of reference sequences that could be used in further phylogenetic studies for PCV2 genotyping was established. Being aware that extensive phylogenetic analyses are time-consuming and often impracticable during routine diagnostic activity, ORF2 nucleotide positions adequately conserved in the reference sequences were identified and reported to allow a quick genotype differentiation.

conclusionsGlobally, the present work provides an updated scenario of PCV2 genotypes distribution and, based on the limits of the previous classification criteria, proposes new rapid and effective schemes for differentiating the four defined PCV2 genotypes.

Indexed as

Genome, ViralGenotypePhylogenyAnimalsCircovirusComputational BiologyDNA, ViralSwineDNA, Viral

Identifiers

PMID26311322
PMCPMC4551364
OpenAlexW1932848266

What OpenQuestion holds

Textmetadata
LicenceCC BY
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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.