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Use of RT-PCR for diagnosis of infectious salmon anaemia virus (ISAV) in carrier sea trout Salmo trutta after experimental infection.
TLDR
The RT-PCR was the most sensitive of these methods for diagnosis of the ISA virus in experimentally infected trout and with the help of this technique it was possible to pick out positive individuals throughout the experimental period of 135 d.
Francisella sp. (Family Francisellaceae) causing mortality in Norwegian cod (Gadus morhua) farming
TLDR
Based on sequence data, culturing temperatures and pathogenicity for cod, it is suggested that this Francisella sp.
New subtype of salmonid alphavirus (SAV), Togaviridae, from Atlantic salmon Salmo salar and rainbow trout Oncorhynchus mykiss in Norway.
TLDR
C cultured a Norwegian salmonid alphavirus from moribund fishes diagnosed with cardiac myopathy syndrome (CMS) and fishes diagnosedWith PD, the virus has also been found in salmon suffering from haemorrhagic smolt syndrome in the fresh water phase.
Characterization of 'Candidatus Clavochlamydia salmonicola': an intracellular bacterium infecting salmonid fish.
TLDR
Molecular evidence for the existence of a novel Chlamydiae that also may cause epitheliocystis in Norwegian salmonids is presented and the name 'Candidatus Clavochlamydia salmonicola' is proposed for this agent of epithelion in freshwater salmonids.
Emergence and maintenance of infectious salmon anaemia virus (ISAV) in Europe: a new hypothesis.
TLDR
It is hypothesised that ISAV is maintained in wild populations of trout and salmon in Europe and it is transmitted between wild hosts mainly during their freshwater spawning phase in rivers, and the frequency of new outbreaks of ISA in farmed salmon probably reflects natural variation in the prevalence of ISAV inWild populations of salmonids.
The Putative Polymerase Sequence of Infectious Salmon Anemia Virus Suggests a New Genus within theOrthomyxoviridae
TLDR
The cloning and sequencing of an ISAV-specific cDNA comprising 2,245 bp with an open reading frame coding for a predicted protein with a calculated molecular weight of 80.5 kDa are reported, suggesting that the ISAV comprises a new, fifth genus in the Orthomyxoviridae.
Occurrence of Francisella piscicida in farmed and wild Atlantic cod, Gadus morhua L., in Norway.
TLDR
The apparent absence of the bacterium in wild populations of cod in the northern parts of Norway and its widespread occurrence in wild cod from southern part of Norway is believed to relate to differences in seawater temperatures.
Genetic stability within the Norwegian subtype of salmonid alphavirus (family Togaviridae)
TLDR
The phylogenetic relationships among 20 NSAV isolates, based on a 1221-nt-long segment covering part of the capsid gene, E3, and part ofThe E2 gene, collected over a period of eight years, are investigated, revealing genetic homogeneity among NSAVisolates, including those from northern Norway.
Paranucleospora theridion n. gen., n. sp. (Microsporidia, Enterocytozoonidae) with a Life Cycle in the Salmon Louse (Lepeophtheirus salmonis, Copepoda) and Atlantic Salmon (Salmo salar)
TLDR
It is suggested that P. theridion should be given status as a new species in a new genus based on characteristics of the morphology, unique development involving a vertebrate fish as well as a crustacean ectoparasite host, and the results of the phylogenetic analyses.
Tissue tropism of salmonid alphaviruses (subtypes SAV1 and SAV3) in experimentally challenged Atlantic salmon (Salmo salar L.)
TLDR
The results indicated that the pseudobranch and the heart are the most useful tissues for real-time RT-PCR diagnostic assays, regardless of disease status, which suggests that surviving Atlantic salmon may become life-long asymptomatic carriers of SAV after an infection.
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