About: Exudative epidermitis and porcine circovirus-2 infection in a Swedish SPF-herd

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An Entity of Type : schema:ScholarlyArticle, within Data Space : covidontheweb.inria.fr associated with source document(s)

Attributes	Values
type	Academic Article research paper schema:ScholarlyArticle
isDefinedBy	Covid-on-the-Web dataset
has title	Exudative epidermitis and porcine circovirus-2 infection in a Swedish SPF-herd
Creator	Fossum, Caroline Greko, Christina Wattrang, Eva Allan, Gordon Mcneilly, Francis
Source	Elsevier; Medline; PMC
abstract	An outbreak of exudative epidermitis (EE) among piglets in a Swedish SPF-herd initiated a survey for indications as to the cause of disease. The herd was established by caesarean section and has been closed to all new animal material, with the exception of semen for artificial insemination (AI). The study comprised serum samples from the SPF-herd over a 10-year period (n=109) and a close monitoring of animals in the herd during the period after the EE outbreak. Serum samples from conventional boars at the AI-station servicing the herd were also included (n=9). All serum samples were tested for antibodies to porcine circovirus-2 (PCV-2). In addition, 3-week-old piglets from three litters (n=24) farrowed close after the initial EE outbreak were closely monitored for clinical signs of skin disease, sampled for Staphylococcus hyicus, tested for antibodies to porcine parvovirus and in sequentially collected serum samples tested for interferon-α (IFN-α) and interleukin-6. The PVC-2 serology showed that animals in the herd were sero-negative at least until 2 months prior to the EE outbreak. During the period close after the EE outbreak the animals showed varying levels of antibodies to PCV-2 but all the tested animals had sero-converted 4 months later. The AI boars were also sero-positive to PCV-2 at the time of the EE outbreak. Animals in the SPF-herd remained sero-positive to PCV-2 during the following 7 years. In the monitored litters, one piglet had clinical EE and 15 piglets displayed defined erythemas on the abdomen. Fourteen of the piglets also had IFN-α in serum on one or more occasions during the study, indicating viral activity among the animals. S. hyicus was isolated from all of the piglets from the earliest sampling point (3 days of age) and onwards, irrespective of clinical signs. PCV-2 was isolated from lymphnode tissue collected from one of the EE affected pigs. Further, increases in the number of stillborn piglets, small litters (<6 piglets) and repeat breeders could be correlated to the time of PCV-2 sero-conversion. Coincidence of active viral infection and sero-conversion to PCV-2 points to the virus as the cause of the EE outbreak and reproductive disturbances.
has issue date	2002-05-24(xsd:dateTime)
bibo:doi	10.1016/s0378-1135(02)00024-x
bibo:pmid	11955778
has license	no-cc
sha1sum (hex)	ef74b0c3029bddee504fb158a479b432e1711872
schema:url	https://doi.org/10.1016/s0378-1135%2802%2900024-x
resource representing a document's title	Exudative epidermitis and porcine circovirus-2 infection in a Swedish SPF-herd
has PubMed Central identifier	PMC7117192
has PubMed identifier	11955778
schema:publication	Vet Microbiol
resource representing a document's body	covid:ef74b0c3029bddee504fb158a479b432e1711872#body_text
is schema:about of	named entity 'exudative' named entity 'porcine circovirus' named entity 'EXUDATIVE' named entity 'EPIDERMITIS' covid:arg/ef74b0c3029bddee504fb158a479b432e1711872 named entity 'SPF' named entity 'EXUDATIVE' named entity 'SWEDISH' named entity 'INFECTION' named entity 'PORCINE CIRCOVIRUS-2' named entity 'EPIDERMITIS' named entity 'HERD' named entity 'SURVEY' named entity 'DISEASE' named entity 'HERD' named entity 'SWEDISH' named entity 'OUTBREAK' named entity 'CAUSE' named entity 'SPF' named entity 'INDICATIONS' named entity 'Exudative' named entity 'infection' named entity 'disease' named entity 'exudative' named entity 'PCV-2' named entity 'ELISA' named entity 'colostrum' named entity 'PCV-2' named entity 'serum samples' named entity 'pathogenesis' named entity 'PMWS' named entity 'PCV-2' named entity 'skin disease' named entity 'farrowing' named entity 'IL-6' named entity 'post-weaning multisystemic wasting syndrome' named entity 'antibodies' named entity 'abortion' named entity 'pathogen' named entity 'PCV-2' named entity 'serological' named entity 'PCV-2' named entity 'micro-organisms' named entity 'serum' named entity 'serum' named entity 'single-stranded' named entity 'porcine' named entity 'sero' named entity 'bacteria' named entity 'coronavirus' named entity 'IL-6' named entity '2000b' named entity 'epidermis' named entity 'clinical signs' named entity 'PCV-2' named entity 'PCR technique' named entity 'Serum samples' named entity 'antibodies' named entity 'nephropathy' named entity 'sero' named entity 'virus' named entity 'fertility problems' named entity 'antibodies' named entity 'clinical signs' named entity 'virus' named entity 'virulent' named entity 'clinical signs' named entity 'PCV-2' named entity 'serum samples' named entity 'PCV-2' named entity 'serum samples' named entity 'fertility' named entity 'deep litter' named entity 'Sweden' named entity 'assay' named entity 'serum' named entity 'euthanasia'

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