-positive , a novel teleost pathogen isolated from cultured barramundi.

Members of the genus are emergent pathogens of cultured eels, as well as several characid and cyprinid species. Since 2013, has been reported from diseased barramundi () cultured in North America; we recovered 8 isolates from diseased fish during different outbreaks from the same farm. The isolates from barramundi were compared phenotypically and genetically to isolates characterized from ornamental fish and recovered from aquatic and terrestrial animals.

Genomic Characterization of Tilapia Lake Virus Isolates Recovered from Moribund Nile Tilapia () on a Farm in the United States.

Here, we present the complete coding sequences of two tilapia lake virus (TiLV) isolates recovered during an investigation of a mortality event in farmed Nile tilapia in the United States. Phylogenetic analysis supported the isolates as each other's closest relatives and members of a clade of Thai TiLV strains.

El Niño drives a widespread ulcerative skin disease outbreak in Galapagos marine fishes.

Climate change increases local climatic variation and unpredictability, which can alter ecological interactions and trigger wildlife disease outbreaks. Here we describe an unprecedented multi-species outbreak of wild fish disease driven by a climate perturbation. The 2015-16 El Niño generated a +2.

Detection and surveillance of viral hemorrhagic septicemia virus using real-time RT-PCR. II. Diagnostic evaluation of two protocols.

Two real-time reverse transcription polymerase chain reaction (rRT-PCR) assays under consideration for deployment to multiple testing laboratories across the USA were evaluated for diagnostic sensitivity and specificity on tissue homogenates obtained from natural and experimental viral hemorrhagic septicemia (VHS)-infected fish. Estimates for diagnostic specificity using virus isolation as the reference method were similar between laboratories regardless of the assay. Diagnostic sensitivity estimates of 0.

Detection and surveillance of viral hemorrhagic septicemia virus using real-time RT-PCR. I. Initial comparison of four protocols.

Eight laboratories worked collectively to evaluate 4 real-time RT-PCR (rRT-PCR) protocols targeting viral hemorrhagic septicemia virus (VHSV) being considered for deployment to a USA laboratory testing network. The protocols utilized previously published primers and probe sets developed for detection and surveillance of VHSV. All participating laboratories received and followed a standard operating protocol for extraction and for each of the rRT-PCR assays.