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A stochastic model for infectious salmon anemia (ISA) in Atlantic salmon farming. 2007

Ida Scheel, and Magne Aldrin, and Arnoldo Frigessi, and Peder A Jansen
Department of Mathematics and (sfi)2 - Statistics for Innovation, University of Oslo, Blindern, 0316 Oslo, Norway. idasch@math.uio.no

Infectious salmon anemia (ISA) is one of the main infectious diseases in Atlantic salmon farming with major economical implications. Despite the strong regulatory interventions, the ISA epidemic is not under control, worldwide. We study the data covering salmon farming in Norway from 2002 to 2005 and propose a stochastic space-time model for the transmission of the virus. We model seaway transmission between farm sites, transmission through shared management and infrastructure, biomass effects and other potential pathways within the farming industry. We find that biomass has an effect on infectiousness, the local contact network and seaway distance of 5 km represent similar risks, but a large component of risk originates from other sources, among which are possibly infected salmon smolt and boat traffic.

UI MeSH Term Description Entries
D009664 Norway A country located in northern Europe, bordering the North Sea and the Atlantic Ocean, west of Sweden. The capital is Oslo. Kingdom of Norway
D009976 Orthomyxoviridae Infections Virus diseases caused by the ORTHOMYXOVIRIDAE. Orthomyxovirus Infections,Infections, Orthomyxoviridae,Infections, Orthomyxovirus,Swine Influenza,Infection, Orthomyxoviridae,Infection, Orthomyxovirus,Influenza, Swine,Orthomyxoviridae Infection,Orthomyxovirus Infection
D005393 Fish Diseases Diseases of freshwater, marine, hatchery or aquarium fish. This term includes diseases of both teleosts (true fish) and elasmobranchs (sharks, rays and skates). Disease, Fish,Diseases, Fish,Fish Disease
D005398 Fisheries Places for cultivation and harvesting of fish, particularly in sea waters. (from McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed) Fish Farms,Fish Hatcheries,Farm, Fish,Farms, Fish,Fish Farm,Fish Hatchery,Fishery,Hatcheries, Fish,Hatchery, Fish
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D013269 Stochastic Processes Processes that incorporate some element of randomness, used particularly to refer to a time series of random variables. Process, Stochastic,Stochastic Process,Processes, Stochastic
D015233 Models, Statistical Statistical formulations or analyses which, when applied to data and found to fit the data, are then used to verify the assumptions and parameters used in the analysis. Examples of statistical models are the linear model, binomial model, polynomial model, two-parameter model, etc. Probabilistic Models,Statistical Models,Two-Parameter Models,Model, Statistical,Models, Binomial,Models, Polynomial,Statistical Model,Binomial Model,Binomial Models,Model, Binomial,Model, Polynomial,Model, Probabilistic,Model, Two-Parameter,Models, Probabilistic,Models, Two-Parameter,Polynomial Model,Polynomial Models,Probabilistic Model,Two Parameter Models,Two-Parameter Model
D046829 Isavirus A genus in the family ORTHOMYXOVIRIDAE containing one species: Infectious salmon anemia virus. Infectious salmon anemia virus,Isaviruses
D018533 Biomass Total mass of all the organisms of a given type and/or in a given area. (From Concise Dictionary of Biology, 1990) It includes the yield of vegetative mass produced from any given crop. Biomasses
D018562 Disease Transmission, Infectious The transmission of infectious disease or pathogens. When transmission is within the same species, the mode can be horizontal or vertical (INFECTIOUS DISEASE TRANSMISSION, VERTICAL). Close-Contact Infectious Disease Transmission,Close-Contact Transmission,Community Spread,Community Transmission,Disease Superspreader Event,Disease Superspreading,Droplet Transmission of Infectious Disease,Droplet Transmission, Infectious Disease,Infectious Disease Droplet Transmission,Person-to-Person Transmission,Autochthonous Transmission,Communicable Disease Transmission,Horizontal Transmission of Infection,Horizontal Transmission of Infectious Disease,Infection Transmission,Infection Transmission, Horizontal,Infectious Disease Transmission,Infectious Disease Transmission, Horizontal,Pathogen Transmission,Pathogen Transmission, Horizontal,Transmission of Infectious Disease,Transmission, Infectious Disease,Autochthonous Transmissions,Close Contact Infectious Disease Transmission,Close Contact Transmission,Close-Contact Transmissions,Community Transmissions,Disease Superspreader Events,Disease Superspreadings,Disease Transmission, Communicable,Event, Disease Superspreader,Events, Disease Superspreader,Infection Horizontal Transmission,Person to Person Transmission,Superspreader Event, Disease,Superspreader Events, Disease,Superspreading, Disease,Superspreadings, Disease,Transmission, Autochthonous,Transmission, Close-Contact,Transmission, Communicable Disease,Transmission, Infection,Transmission, Pathogen,Transmission, Person-to-Person,Transmissions, Autochthonous,Transmissions, Community

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