Infectious hematopoietic necrosis virus specialization in a multihost salmonid system.
Bayesian models
fish diseases
salmon hatcheries
specialist/generalist trade‐offs
transmission
Journal
Evolutionary applications
ISSN: 1752-4571
Titre abrégé: Evol Appl
Pays: England
ID NLM: 101461828
Informations de publication
Date de publication:
Sep 2020
Sep 2020
Historique:
received:
09
10
2019
revised:
24
01
2020
accepted:
26
01
2020
entrez:
10
9
2020
pubmed:
11
9
2020
medline:
11
9
2020
Statut:
epublish
Résumé
Many pathogens interact and evolve in communities where more than one host species is present, yet our understanding of host-pathogen specialization is mostly informed by laboratory studies with single species. Managing diseases in the wild, however, requires understanding how host-pathogen specialization affects hosts in diverse communities. Juvenile salmonid mortality in hatcheries caused by infectious hematopoietic necrosis virus (IHNV) has important implications for salmonid conservation programs. Here, we evaluate evidence for IHNV specialization on three salmonid hosts and assess how this influences intra- and interspecific transmission in hatchery-reared salmonids. We expect that while more generalist viral lineages should pose an equal risk of infection across host types, viral specialization will increase intraspecific transmission. We used Bayesian models and data from 24 hatcheries in the Columbia River Basin to reconstruct the exposure history of hatcheries with two IHNV lineages, MD and UC, allowing us to estimate the probability of juvenile infection with these lineages in three salmonid host types. Our results show that lineage MD is specialized on steelhead trout and perhaps rainbow trout (both
Identifiants
pubmed: 32908589
doi: 10.1111/eva.12931
pii: EVA12931
pmc: PMC7463311
doi:
Types de publication
Journal Article
Langues
eng
Pagination
1841-1853Informations de copyright
© 2020 The Authors. Evolutionary Applications published by John Wiley & Sons Ltd.
Déclaration de conflit d'intérêts
None declared.
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