Abstract
Lack of evidence of vertical transmission of piscine myocarditis virus in Atlantic salmon (Salmo salar L.).
Highlights
Piscine myocarditis virus (PMCV) is the causal agent of cardiomyopathy syndrome (CMS), a disease affecting the heart of Atlantic salmon (Haugland et al, 2011)
PMCV has been detected at a high prevalence in broodfish in freshwater, including high levels of virus-specific RNA, but with varying presence of CMS disease (Bang Jensen, Nylund, Svendsen, Ski, & Takle, 2019; Wiik-Nielsen, Ski, Aunsmo, & Lovoll, 2012)
Two previous studies have shown indications of vertical transmission of PMCV-specific RNA from broodfish to progeny, but the prevalence of positive individuals is low and CMS or other signs of disease have not been found in these individuals (Bang Jensen et al, 2019; Wiik-Nielsen, Ski, et al, 2012)
Summary
Lack of evidence of vertical transmission of piscine myocarditis virus in Atlantic salmon (Salmo salar L.). Mikalsen1 | Morten Lund2 | Farah Manji3 | Mari Viken Kjønstad3 | Per Helge Bergtun3 | Gordon Ritchie3 | Vidar Aspehaug2 | Magnus Devold2 | Øystein Evensen
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