First Detection of Infectious Salmon Anaemia Virus in Farmed Atlantic Salmon in Chile
Author Information
Author(s): Godoy Marcos G, Aedo Alejandra, Kibenge Molly JT, Groman David B, Yason Carmencita V, Grothusen Horts, Lisperguer Angelica, Calbucura Marlene, Avendaño Fernando, Imilán Marcelo, Jarpa Miguel, Kibenge Frederick SB
Primary Institution: Biovac SA, Puerto Montt, Chile
Hypothesis
This study aims to report the first significant clinical outbreak of infectious salmon anaemia (ISA) in farmed Atlantic salmon in Chile.
Conclusion
The study confirms the first occurrence of ISA in farmed Atlantic salmon in Chile, caused by a distinct strain of the infectious salmon anaemia virus.
Supporting Evidence
- The outbreak was characterized by a cumulative mortality of 13.6% at harvest time.
- The virus was identified as belonging to the European genotype (Genotype I) with unique characteristics.
- This is the first report of primary isolation of ISAV using the EPC cell line.
Takeaway
This study found that a virus causing a disease in salmon was first detected in Chile, which is important for fish health.
Methodology
The study involved necropsy of moribund fish, histological evaluation, virus isolation, and molecular analysis.
Limitations
The study does not clarify the contribution of previous infections to the observed pathology.
Participant Demographics
Farmed Atlantic salmon with a mean weight of 3.9 kg.
Digital Object Identifier (DOI)
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