title: Distribution of Infectious Pancreatic Necrosis Virus (IPNV) Based on Surveillance Programs in Freshwater Trout Farms of Mexico.
abstract: Diagnostic testing was performed between 2000 and 2012 to determine the distribution of infectious pancreatic necrosis virus (IPNV) in the main states of the Mexican Republic with freshwater Rainbow Trout Oncorhynchus mykiss (Walbaum) farms. This virus was positively identified from Rainbow Trout farms in seven of the eight states assessed. Due to nonnormal data distribution, a logistic regression model was applied for statistical analysis, the results of which indicated that virus prevalence was variable between states, with moderate but significant differences. Regarding the time periods evaluated, IPNV prevalence was higher during the first years of the study. The susceptible, infected, removed model was used to examine this phenomenon, which indicated that the decreased prevalence during the latter years of the study could be associated with a real elimination of the infection. The information of the cases analyzed also suggests a relationship with the irregularity in the submission of samples to the laboratory and emphasizes other factors that have contributed to the transmission of IPNV throughout the country. Received November 10, 2014; accepted December 5, 2015.
authors.affiliation: a Centre for Research and Advanced Studies in Animal Health, School of Veterinary Medicine , Autonomous University of the State of Mexico , Km 15.5, Carretera Toluca-Atlacomulco, San Cayetano Morelos, Toluca 50200 , Mexico.
authors.forename: César
authors.initials: C
authors.lastname: Ortega
authors.affiliation: a Centre for Research and Advanced Studies in Animal Health, School of Veterinary Medicine , Autonomous University of the State of Mexico , Km 15.5, Carretera Toluca-Atlacomulco, San Cayetano Morelos, Toluca 50200 , Mexico.
authors.forename: Benjamín
authors.initials: B
authors.lastname: Valladares
authors.affiliation: a Centre for Research and Advanced Studies in Animal Health, School of Veterinary Medicine , Autonomous University of the State of Mexico , Km 15.5, Carretera Toluca-Atlacomulco, San Cayetano Morelos, Toluca 50200 , Mexico.
authors.forename: Donald
authors.initials: D
authors.lastname: Arguedas
authors.affiliation: a Centre for Research and Advanced Studies in Animal Health, School of Veterinary Medicine , Autonomous University of the State of Mexico , Km 15.5, Carretera Toluca-Atlacomulco, San Cayetano Morelos, Toluca 50200 , Mexico.
authors.forename: Fernando
authors.initials: F
authors.lastname: Vega
authors.affiliation: a Centre for Research and Advanced Studies in Animal Health, School of Veterinary Medicine , Autonomous University of the State of Mexico , Km 15.5, Carretera Toluca-Atlacomulco, San Cayetano Morelos, Toluca 50200 , Mexico.
authors.forename: Roberto
authors.initials: R
authors.lastname: Montes de Oca
authors.affiliation: b Marine Scotland Science , Marine Laboratory , 375 Victoria Road, Aberdeen AB11 9DB , UK.
authors.forename: Alexander G
authors.initials: AG
authors.lastname: Murray
mesh_terms: D000818:Animals; D017756:Aquaculture; D018175:Birnaviridae Infections / Q000453:epidemiology / Q000662:veterinary* / Q000821:virology; D005393:Fish Diseases / Q000453:epidemiology / Q000821:virology*; D018061:Infectious pancreatic necrosis virus / Q000302:isolation & purification*; D008800:Mexico / Q000453:epidemiology; D011159:Population Surveillance; D013997:Time Factors; D014337:Trout