Prevalence of viral RNA from piscine reovirus and piscine myocarditis virus in Atlantic salmon, <i>Salmo salar</i> L., broodfish and progeny

Wiik-Nielsen, Christer R.; Ski, P-M R; Aunsmo, Arnfinn; Løvoll, Marie

doi:10.1111/j.1365-2761.2011.01328.x

Cited by 39 publications

(52 citation statements)

References 5 publications

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“…A causal relationship between these 2 diseases has often been suggested, as they both affect the heart musculature, and recently, co-infections with PMCV and the virus associated with HSMI, piscine reovirus, have been observed (Løvoll et al 2010, Wiik-Nielsen et al 2012. Our results thus statistically confirm that HSMI is indeed a risk factor for CMS in farmed Atlantic salmon.…”

Section: Discussionsupporting

confidence: 83%

Risk factors for cardiomyopathy syndrome (CMS) in Norwegian salmon farming

Jensen

Brun²,

Fineid³

et al. 2013

Dis. Aquat. Org.

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Cardiomyopathy syndrome (CMS) has been an economically important disease in Norwegian aquaculture since the 1990s. In this study, data on monthly production characteristics and case registrations were combined in a cohort study and supplemented with a questionnairebased case-control survey on management factors in order to identify risk factors for CMS. The cohort study included cases and controls from 2005 to 2012. From this dataset differences between all cases and controls were analyzed by a mixed effect multivariate logistic regression. From this we found that the probability of CMS increased with increasing time in the sea, infection pressure, and cohort size, and that cohorts which had previously been diagnosed with heart and skeletal muscle inflammation or which were in farms with a history of CMS in previous cohorts had double the odds of developing CMS. The model was then used to calculate the predicted value for each cohort from which additional data were obtained via the questionnaire-based survey and used as offset for calculating the probability of CMS in a semi-univariate analysis of additional risk factors. Finally, the model was used to calculate the probability of developing CMS in 100 different scenarios in which the cohorts were subject to increasingly worse conditions with regards to the risk factors from the dataset. We believe that this exercise is a good way of communicating the findings to farmers, so they can make informed decisions when trying to avoid CMS in their fish cohorts.

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Section: Discussionsupporting

confidence: 83%

Risk factors for cardiomyopathy syndrome (CMS) in Norwegian salmon farming

Jensen

Brun²,

Fineid³

et al. 2013

Dis. Aquat. Org.

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“…Recently, a viral etiology was suggested where piscine reovirus was associated with HSMI, nevertheless, Koch's postulates remained unfulfilled (Wiik-Nielsen et al, 2012;Palacios et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

Comparative cardiac pathological changes of Atlantic salmon (Salmo salar L.) affected with heart and skeletal muscle inflammation (HSMI), cardiomyopathy syndrome (CMS) and pancreas disease (PD)

Yousaf

Koppang

Skjødt³

et al. 2013

Veterinary Immunology and Immunopathology

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“…HSMI appears to be transmissible in laboratory studies by injecting tissue homogenate from diseased to healthy fish [5]. Recently, a viral etiology was suggested where piscine reovirus was associated with HSMI, although Koch's postulates to date remains unfulfilled [6,7]. Lesions first appear and are more frequent in heart than skeletal muscle.…”

Section: Introductionmentioning

confidence: 99%