Eveline (Evi) Emmenegger
Evi was born and raised in Alaska and spent her summers commercial fishing and working in canneries. Her continued affinities for fish and fascination with the mysteries of microbial pathogens lead to a double major in fisheries and microbiology at college, a graduate degree in fisheries, and ultimately a desire to work in the field of fish pathology.
Research Interests:
Currently Evi is the principal investigator that manages the aquatic biosafety level three (BSL-3) laboratory, one of the few facilities in the U.S. built for the testing aquatic pathogens that pose a high risk to the environment. Newly introduced aquatic pathogens can be safely study in this secure BSL-3 containment laboratory to determine if these novel pathogens are potential threats to native fish stocks. Her research focuses on studying exotic and invasive fish viruses and the various stress factors that lead to disease outbreaks in fish populations. Her other work includes development of a template database for aquatic pathogens, in-house and web-based databases cataloging and characterizing fish viruses, assessing the genetic variability of fish virus strains, and therapeutic means of combating fish diseases.
Professional Experience
2001 to Present - Research Microbiologist, Virology Program, U.S. Geological Survey, Western Fisheries Science Center, Seattle, WA
1994-2001 - Microbiologist, Molecular Biology Program, U.S. Geological Survey, Western Fisheries Science Center, Seattle, WA
1992-1994 - Fisheries Biologist, U.S. Fish & Wildlife Service, National Fisheries Research Center, Seattle, WA
1990-1991 - Microbiologist, Fish Pathology Section, Alaska Department of Fish and Game, Juneau, AK
1989-1990 - Fish and Wildlife Technician, Alaska Department
Education and Certifications
B.S. Fisheries, Oregon State University, Corvallis, OR
B.S. Microbiology, Oregon State University, Corvallis, OR
M.S. Fisheries, University of Washington, Seattle, WA
Science and Products
Kinetics of viral load and erythrocytic inclusion body formation in pacific herring artificially infected with erythrocytic necrosis virus
AquaPathogen X--A template database for tracking field isolates of aquatic pathogens
Exxon Valdez oil spill restoration project final report: Prince William Sound Herring disease program (HDP), restoration project 070819
About viral hemorrhagic septicemia (VHS) virus. Potential threat of Great Lakes VHS virus in Western United States
Development of an aquatic pathogen database (AquaPathogen X) and its utilization in tracking emerging fish virus pathogens in North America
Detection of spring viraemia of carp virus (SVCV) by loop-mediated isothermal amplification (LAMP) in koi carp, Cyprinus carpio L
DNA vaccine protects ornamental koi (Cyprinus carpio koi) against North American spring viremia of carp virus
Genetic typing of infectious hematopoietic necrosis virus
Phylogeography of infectious haematopoietic necrosis virus in North America
Characterization of the mutant spectra of a fish RNA virus within individual hosts during natural infections
Genetic characterization of infectious hematopoietic necrosis virus of coastal salmonid stocks in Washington State
Genetic diversity and epidemiology of infectious hematopoietic necrosis virus in Alaska
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Filter Total Items: 32
Kinetics of viral load and erythrocytic inclusion body formation in pacific herring artificially infected with erythrocytic necrosis virus
Viral erythrocytic necrosis (VEN) is a condition that affects marine and anadromous fish species, including herrings and salmonids, in the Atlantic and Pacific oceans. Infection is frequently associated with severe anemia and causes episodic mortality among wild and hatchery fish when accompanied by additional stressors; VEN can be presumptively diagnosed by (1) light microscopic identification ofAuthorsJolene A. Glenn, Eveline J. Emmenegger, Courtney A. Grady, Sean R. Roon, Jacob L. Gregg, Carla M. Conway, James R. Winton, Paul K. HershbergerAquaPathogen X--A template database for tracking field isolates of aquatic pathogens
AquaPathogen X is a template database for recording information on individual isolates of aquatic pathogens and is available for download from the U.S. Geological Survey (USGS) Western Fisheries Research Center (WFRC) website (http://wfrc.usgs.gov). This template database can accommodate the nucleotide sequence data generated in molecular epidemiological studies along with the myriad of abiotic anAuthorsEvi Emmenegger, Gael KurathExxon Valdez oil spill restoration project final report: Prince William Sound Herring disease program (HDP), restoration project 070819
Surveys of pathogens in Pacific herring from 2007 – 2010 indicated that Ichthyophonus, viral hemorrhagic septicemia virus, and erythrocytic necrosis virus are endemic in Prince William Sound and throughout the NE Pacific. Laboratory studies with VHSV indicated that multiple herring stocks are equally susceptible to the resulting disease, Pacific herring shed copious levels of VHSV (as high at 5x10AuthorsPaul Hershberger, Diane G. Elliott, Eveline J. Emmenegger, John D. Hansen, Gael Kurath, James R. Winton, Richard Kocan, Scott LaPatraAbout viral hemorrhagic septicemia (VHS) virus. Potential threat of Great Lakes VHS virus in Western United States
Viral hemorrhagic septicemia (VHS) is a disease caused by a virus (VHSV). There are different strains of the virus that can infect marine and freshwater fish species, and the different strains may affect species differently. VHSV has recently invaded the Great Lakes, resulting in many large-scale fish die-offs and new regulatory restrictions for aquaculture throughout the region.AuthorsJerri L Bartholomew, Gael Kurath, Evi EmmeneggerDevelopment of an aquatic pathogen database (AquaPathogen X) and its utilization in tracking emerging fish virus pathogens in North America
The AquaPathogen X database is a template for recording information on individual isolates of aquatic pathogens and is freely available for download (http://wfrc.usgs.gov). This database can accommodate the nucleotide sequence data generated in molecular epidemiological studies along with the myriad of abiotic and biotic traits associated with isolates of various pathogens (e.g. viruses, parasitesAuthorsE.J. Emmenegger, E. Kentop, T.M. Thompson, S. Pittam, A. Ryan, D. Keon, J.A. Carlino, J. Ranson, R.B. Life, R.M. Troyer, K.A. Garver, Gael KurathDetection of spring viraemia of carp virus (SVCV) by loop-mediated isothermal amplification (LAMP) in koi carp, Cyprinus carpio L
Spring viraemia of carp virus (SVCV) is a rhabdovirus associated with systemic illness and mortality in cyprinids. Several diagnostic tests are available for detection of SVCV. However, most of these tests are time consuming and are not well adapted for field-based diagnostics. In this study, a diagnostic tool for SVCV detection based on reverse transcription loop-mediated isothermal amplificationAuthorsR.B. Shivappa, R. Savan, T. Kono, M. Sakai, E. Emmenegger, Gael Kurath, Jay F. LevineDNA vaccine protects ornamental koi (Cyprinus carpio koi) against North American spring viremia of carp virus
The emergence of spring viremia of carp virus (SVCV) in the United States constitutes a potentially serious alien pathogen threat to susceptible fish stocks in North America. A DNA vaccine with an SVCV glycoprotein (G) gene from a North American isolate was constructed. In order to test the vaccine a challenge model utilizing a specific pathogen-free domestic koi stock and a cold water stress treaAuthorsE.J. Emmenegger, Gael KurathGenetic typing of infectious hematopoietic necrosis virus
No abstract available.AuthorsGael Kurath, A. Garver, William N. Batts, Eveline J. EmmeneggerPhylogeography of infectious haematopoietic necrosis virus in North America
Infectious hematopoietic necrosis virus (IHNV) is a rhabdoviral pathogen that infects wild and cultured salmonid fish throughout the Pacific Northwest of North America. IHNV causes severe epidemics in young fish and can cause disease or occur asymptomatically in adults. In a broad survey of 323 IHNV field isolates, sequence analysis of a 303 nucleotide variable region within the glycoprotein geneAuthorsGael Kurath, Kyle A. Garver, Ryan M. Troyer, Eveline J. Emmenegger, Katja Einer-Jensen, Eric D. AndersonCharacterization of the mutant spectra of a fish RNA virus within individual hosts during natural infections
Infectious hematopoietic necrosis virus (IHNV) is an RNA virus that causes significant mortalities of salmonids in the Pacific Northwest of North America. RNA virus populations typically contain genetic variants that form a heterogeneous virus pool, referred to as a quasispecies or mutant spectrum. This study characterized the mutant spectra of IHNV populations within individual fish reared in difAuthorsEveline J. Emmenegger, Ryan M. Troyer, Gael KurathGenetic characterization of infectious hematopoietic necrosis virus of coastal salmonid stocks in Washington State
Infectious hematopoietic necrosis virus (IHNV) is a pathogen that infects many Pacific salmonid stocks from the watersheds of North America. Previous studies have thoroughly characterized the genetic diversity of IHNV isolates from Alaska and the Hagerman Valley in Idaho. To enhance understanding of the evolution and viral transmission patterns of IHNV within the Pacific Northwest geographic rangeAuthorsE.J. Emmenegger, Gael KurathGenetic diversity and epidemiology of infectious hematopoietic necrosis virus in Alaska
Forty-two infectious hematopoietic necrosis virus (IHNV) isolates from Alaska were analyzed using the ribonuclease protection assay (RPA) and nucleotide sequencing. RPA analyses, utilizing 4 probes, N5, N3 (N gene), GF (G gene), and NV (NV gene), determined that the haplotypes of all 3 genes demonstrated a consistent spatial pattern. Virus isolates belonging to the most common haplotype groups werAuthorsE.G Emmenegger, T.R. Meyers, T.O. Burton, Gael Kurath - Software
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