Detection of Acipenser European Iridovirus (AcIV-E) in Sturgeon Farms in Northern Italy between 2021-2023. in Viruses / Viruses. 2024 Mar 18;16(3):465. doi: 10.3390/v16030465.

2024
ASL VCO

Tipo pubblicazione

Journal Article

Autori/Collaboratori (6)Vedi tutti...

Bondavalli F
Istituto Zooprofilattico Sperimentale del Piemonte, Liguria e Valle D'Aosta, 10154 Torino, Italy.
Schleicherová D
Istituto Zooprofilattico Sperimentale del Piemonte, Liguria e Valle D'Aosta, 10154 Torino, Italy.
Pastorino P
Department of Life Sciences and Systems Biology (DBIOS), University of Turin, Via Accademia Albertina 13, 10123 Turin, Italy.

et alii...

Abstract

Sturgeon farming is rapidly expanding in Europe, where Italy ranks first in farmed caviar production. A major threat to sturgeon health in captivity is infection with Acipenser European Iridovirus (AcIV-E), a viral disease definitively identified in 2016. Here we present data on the occurrence of AcIV-E in 482 sturgeons (age ? 12 months, species of the genus Acipenser and the species Huso huso) collected from sturgeon farms in northern Italy between January 2021 and December 2023. The health status of each specimen was determined by necroscopy and virological assay. Virological analysis was performed on gill samples and real-time PCR specific to the MCP gene of the iridovirus viral capsid. Molecular analysis revealed positivity to the virus in 204 samples (42.68% of the total), while anatomopathological examination of nearly all fish with positive real-time PCR disclosed swollen abdomen, hepatic steatosis, splenomegaly, and increased gill volume. Two challenges to timely diagnosis are the absence of pathognomonic symptoms and the inability to isolate the virus on cell monolayers. Continuous and widespread health monitoring is therefore crucial for disease management and to effectively control spread of the virus.

Accesso banca dati bibliografica

PMID : 38543830

DOI : 10.3390/v16030465

Keywords

Animals; Iridovirus; Fish Diseases/diagnosis/epidemiology/pathology; Italy/epidemiology; Virus Diseases; Europe; Fishes; AcIV-E; Acipenser spp.; Huso huso; sturgeon farming;