Publications
Below is a list of available Fish Health Program peer reviewed and published science.
Filter Total Items: 323
Amplification and transport of an endemic fish disease by an introduced species
The introduction of American shad from the Atlantic to the Pacific coast of North America in the late 1800’s and the subsequent population expansion in the 1980’s resulted in the amplification of Ichthyophonus sp., a Mesomycetozoean parasite of wild marine fishes. Sequence analysis of the ribosomal DNA gene complex (small subunit and internal transcribed spacer regions) and Ichthyophonus epidemiol
Authors
Paul Hershberger, Bjorn Leeuw, Gregg Jacob, Courtney Grady, Kenneth Lujan, Susan Gutenberger, Maureen K. Purcell, James Woodson, James Winton, Michael Parsley
Distribution of an invasive aquatic pathogen (viral hemorrhagic septicemia virus) in the Great Lakes and its relationship to shipping
Viral hemorrhagic septicemia virus (VHSV) is a rhabdovirus found in fish from oceans of the northern hemisphere and freshwaters of Europe. It has caused extensive losses of cultured and wild fish and has become established in the North American Great Lakes. Large die-offs of wild fish in the Great Lakes due to VHSV have alarmed the public and provoked government attention on the introduction and s
Authors
Mark B. Bain, Emily R. Cornwell, Kristine M. Hope, Geofrey E. Eckerlin, Rufina N. Casey, Geoffrey H. Groocock, Rodman G. Getchell, Paul R. Bowser, James R. Winton, William N. Batts, Allegra Cangelosi, James W. Casey
Transcriptome analysis of rainbow trout infected with high and low virulence strains of Infectious hematopoietic necrosis virus
There are three main genetic lineages or genogroups of Infectious hematopoietic necrosis virus (IHNV) in N. America. Strains representing the M genogroup are more virulent in rainbow trout relative to the U genogroup. In this study, we used microarray analysis to evaluate potential mechanisms responsible for host-specific virulence in rainbow trout that were given intraperitoneal injections of buf
Authors
Maureen K. Purcell, Inderjit Singh Marjara, William Batts, Gael Kurath, John D. Hansen
Management of bacterial kidney disease in Chinook Salmon hatcheries based on broodstock testing by enzyme-linked immunosorbent assay: A multiyear study
From the mid-1980s through the early 1990s, outbreaks of bacterial kidney disease (BKD) caused by Renibacterium salmoninarum continued in Chinook salmon Oncorhynchus tshawytscha in Idaho Department of Fish and Game (IDFG) hatcheries despite the use of three control methods: (1) injection of returning adult fish with erythromycin to reduce prespawning BKD mortality and limit vertical transmission o
Authors
A. Douglas Munson, Diane G. Elliott, Keith Johnson
Emerging viral diseases of fish and shrimp
The rise of aquaculture has been one of the most profound changes in global food production of the past 100 years. Driven by population growth, rising demand for seafood and a levelling of production from capture fisheries, the practice of farming aquatic animals has expanded rapidly to become a major global industry. Aquaculture is now integral to the economies of many countries. It has provided
Authors
James R. Winton, Peter J. Walker
Pathological and immunological responses associated with differential survival of Chinook salmon following Renibacterium salmoninarum challenge
Chinook salmon Oncorhynchus tshawytscha are highly susceptible to Renibacterium salmoninarum, the causative agent of bacterial kidney disease (BKD). Previously we demonstrated that introduced Chinook salmon from Lake Michigan, Wisconsin (WI), USA, have higher survival following R. salmoninarum challenge relative to the progenitor stock from Green River, Washington, USA. In the present study, we in
Authors
David C. Metzger, Diane G. Elliott, Andrew Wargo, Linda K. Park, Maureen K. Purcell
Resistance and Protective Immunity in Redfish Lake Sockeye Salmon Exposed to M Type Infectious Hematopoietic Necrosis Virus (IHNV)
Differential virulence of infectious hematopoietic necrosis virus (IHNV) isolates from the U and M phylogenetic subgroups is clearly evident in the Redfish Lake (RFL) strain of sockeye salmon Oncorhynchus nerka. In these fish, experimental immersion challenges with U isolates cause extremely high mortality and M isolates cause low or no mortality. When survivors of M virus immersion challenges wer
Authors
Gael Kurath, Kyle Garver, Maureen K. Purcell, Scott E. LaPatra
Effects of temperature on disease progression and swimming stamina in Ichthyophonus‐infected rainbow trout, Oncorhynchus mykiss (Walbaum)
Rainbow trout, Oncorhynchus mykiss, were infected with Ichthyophonus sp. and held at 10°C, 15°C and 20°C for 28 days to monitor mortality and disease progression. Infected fish demonstrated more rapid onset of disease, higher parasite load, more severe host tissue reaction and reduced mean‐day‐to‐death at higher temperature. In a second experiment, Ichthyophonus‐infected fish were reared at 15°C f
Authors
Richard Kocan, Paul K Hershberger, George Sanders, James R Winton
Infectious haematopoietic necrosis virus genogroup-specific virulence mechanisms in sockeye salmon, Oncorhynchus nerka (Walbaum), from Redfish Lake, Idaho
Characterization of infectious haematopoietic necrosis virus (IHNV) field isolates from North America has established three main genogroups (U, M and L) that differ in host-specific virulence. In sockeye salmon, Oncorhynchus nerka, the U genogroup is highly virulent, whereas the M genogroup is nearly non-pathogenic. In this study, we sought to characterize the virus-host dynamics that contribute t
Authors
M. K. Purcell, K.A. Garver, C. Conway, D.G. Elliott, Gael Kurath
Efficacy of a novel Pasteurella multocida vaccine against progressive atrophic rhinitis of swine
The efficacy of a novel vaccine composed of three short recombinant subunit Pasteurella multocida toxin (PMT) proteins in combination with a bi-valent P. multocida whole-cell bacterin (rsPMT–PM) was evaluated in field studies for prevention and control of progressive atrophic rhinitis (PAR) of swine at 15 conventional farrow-to-finish farms. Experimental piglets that were immunized twice with the
Authors
Shih-Ling Hsuan, Chih-Ming Liao, Chienjin Huang, James R. Winton, Zeng-Weng Chen, Wei-Cheng Lee, Jiunn-Wang Liao, Ter-Hsin Chen, Chwei-Jang Chiou, Kuang-Sheng Yeh, Maw-Sheng Chien
Development and validation of a quantitative PCR to detect Parvicapsula minibicornis and comparison to histologically ranked infection of juvenile Chinook salmon, Oncorhynchus tshawytscha (Walbaum), from the Klamath River, USA
Parvicapsula minibicornis is a myxosporean parasite that is associated with disease in Pacific salmon during their freshwater life history phase. This study reports the development of a quantitative (real-time) polymerase chain reaction (QPCR) to detect P. minibicornis DNA. The QPCR assay targets the 18S ribosomal subunit gene. A plasmid DNA control was developed to calibrate cycle threshold (CT)
Authors
K. True, M. K. Purcell, J.S. Foott
Normal gastrointestinal tract histology of white sturgeon Acipenser transmontanus and comparison to sturgeon from a contaminated habitat
No abstract available.
Authors
Diane G. Elliott, Carla M. Conway