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Your search keyword '"Postweaning multisystemic wasting syndrome (PMWS)"' showing total 2 results
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2 results on '"Postweaning multisystemic wasting syndrome (PMWS)"'

1. Torque teno sus virus 1 (TTSuV1) and 2 (TTSuV2) viral loads in serum of postweaning multisystemic wasting syndrome (PMWS)-affected and healthy pigs in Brazil.

Author

Teixeira, Thais Fumaco, Cibulski, Samuel Paulo, dos Santos, Helton Fernandes, Wendlant, Adriéli, de Sales Lima, Francisco Esmaile, Schmidt, Candice, Franco, Ana Cláudia, and Roehe, Paulo Michel

Subjects
*TORQUE teno virus, *VIRAL load, *BLOOD serum analysis, *ANIMAL weaning, *WASTING syndrome, *SWINE, *DIAGNOSIS, *ANIMAL health
Abstract

Associations between Torque teno sus viruses (TTSuVs) and the occurrence of postweaning multisystemic wasting syndrome (PMWS) have been reported with controversial results. Currently, no studies have been performed comparing simultaneously viral loads of TTSuVs and PCV2. To examine the role for TTSuVs in PMWS-affected animals, a SYBR Green-based quantitative PCR (qPCR) was designed to detect and quantify TTSuV1, TTSuV2 and PCV2 genomes in swine sera. TTSuV1 genome loads were significantly higher in healthy adults than in young and SPF animals (p < 0.05) suggesting that the prevalence of TTSuV1 infection increases with age and bears no association with PMWS. Regarding TTSuV2, no significant variation was detected in viral loads within any of the groups. As expected, PCV2 genome loads were higher in PMWS-affected swine than in healthy or SPF animals (p < 0.001). These findings provide clear evidence to indicate that neither TTSuV1 nor TTSuV2 viral loads have any correlation with the occurrence of PMWS. [ABSTRACT FROM AUTHOR]

Published
2015
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2. Airborne porcine circovirus in Canadian swine confinement buildings

Author

Duchaine, Caroline, Massé, Daniel, Verreault, Daniel, Létourneau, Valérie., Gagnon, Carl A., Gendron, Louis, Duchaine, Caroline, Massé, Daniel, Verreault, Daniel, Létourneau, Valérie., Gagnon, Carl A., and Gendron, Louis

Abstract

Porcine circovirus type 2 has been linked to many diseases, such as postweaning multisystemic wasting syndrome and can be found in most commercial swine confinement buildings around the world. Although the exact role of the virus in the appearance of disease in animals is not fully understood, the mechanisms responsible for the transmission of the virus are currently believed to happen mostly by contact. Nevertheless, the possibility of airborne transmission cannot be rejected. This study investigated the presence of the virus, total bacteria and total dusts in aerosols. Air samples were taken with gelatin filters in swine confinement buildings and were analyzed by quantitative polymerase chain reaction. Interestingly, concentrations of airborne PCV2 of up to 10(7) genomes per cubic meter of air were detected. Airborne dust concentrations were correlated to airborne concentrations of PCV2 and total bacteria. Although the infectivity potential of the airborne viral loads were not evaluated, it is clear that the virus can become airborne in detectable concentrations in commercial swine confinement building environments. The significance of this finding in an epidemiological point of view will need further investigation.

Published
2016

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