The rise of the rosette agent in Europe: An epidemiological enigma

Autor:	Marine Combe, Rodolphe E. Gozlan
Rok vydání:	2018
Předmět:	0106 biological sciences 0301 basic medicine Sympatry China infectious disease Mesomycetozoea Infections Population Cyprinidae Biodiversity Fresh Water Mesomycetozoea Biology Communicable Diseases Emerging 010603 evolutionary biology 01 natural sciences Sphaerothecum destruens Fish Diseases 03 medical and health sciences Salmon aquatic ecosystem Animals 14. Life underwater Pseudorasbora parva education Phylogeny biodiversity education.field_of_study generalist pathogen General Veterinary General Immunology and Microbiology Ecology General Medicine biology.organism_classification Europe Population decline 030104 developmental biology Infectious disease (medical specialty) Freshwater fish
Zdroj:	Transboundary and Emerging Diseases. 65:1474-1481
ISSN:	1865-1674
DOI:	10.1111/tbed.13001
Popis:	International biodiversity assessments often overlook the role of emerging infectious pathogens in the decline of freshwater fish populations despite the many examples of emerging diseases in other more visible taxa on a global scale. Whilst the introduction of the rosette agent Sphaerothecum destruens in Europe remained an epidemiological enigma, recent findings have shown that this parasite arrived in Europe with the introduction of the healthy carrier Pseudorasbora parva from China nearly 60 years ago and its emergence went unnoticed for over 45 years despite its severe impact on European fish biodiversity. Recent reports on the host and pathogen phylogeny point towards an ancient host-pathogen co-evolution with direct implications on disease risk. Here, we postulate that the observed rapid population decline of native fish species following their infection with virulent strains of S. destruens has underpinned the rapid establishment of P. parva populations during the invasion process. We reviewed the existing evidence supporting the claim of an S. destruens' emergence worldwide and also suggest that the origin of the US strains is to be found among contaminated Asian Oncorhynchus tshawytscha living in sympatry with native Asian P. parva population. Finally, several important preventative steps are suggested as a way to manage the impact of S. destruens on local fish communities.
Databáze:	OpenAIRE
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