The widespread presence of a family of fish virulence plasmids in Vibrio vulnificus stresses its relevance as a zoonotic pathogen linked to fish farms
Por:
Carmona-Salido, H, Fouz, B, Sanjuan, E, Carda, M, Delannoy, C, Garcia-Gonzalez, N, Gonzalez-Candelas, F and Amaro, C
Publicada:
1 ene 2021
Resumen:
Vibrio vulnificus is a pathogen of public health concern that causes either primary septicemia after ingestion of raw shellfish or secondary septicemia after wound exposure to seawater. In consequence, shellfish and seawater are considered its main reservoirs. However, there is one aspect of its biology that is systematically overlooked: its association with fish in its natural environment. This association led in 1975 to the emergence of a zoonotic clade within phylogenetic lineage 2 following successive outbreaks of vibriosis in farmed eels. Although this clade is now worldwide distributed, no new zoonotic clades were subsequently reported. In this work, we have performed phylogenetic, genomic and functional studies to show that other zoonotic clades are in fact present in 4 of the 5 lineages of the species. Further, we associate these clades, most of them previously but incompletely described, with the acquisition of a family of fish virulence plasmids containing genes essential for resistance to the immune system of certain teleosts of interest in aquaculture. Consequently, our results provide several pieces of evidence about the importance of this species as a zoonotic agent linked to fish farms, as well as on the relevance of these artificial environments acting as drivers that accelerate the evolution of the species.
Filiaciones:
Carmona-Salido, H:
Univ Valencia, Dept Microbiol & Ecol & Estruct Recerca Interdisc, Valencia, Spain
Fouz, B:
Univ Valencia, Dept Microbiol & Ecol & Estruct Recerca Interdisc, Valencia, Spain
Sanjuan, E:
Univ Valencia, Dept Microbiol & Ecol & Estruct Recerca Interdisc, Valencia, Spain
Carda, M:
Univ Valencia, Dept Microbiol & Ecol & Estruct Recerca Interdisc, Valencia, Spain
Delannoy, C:
Skretting Grp, Stavanger, Norway
:
Univ Valencia, Inst Integrat Syst Biol I2SysBio UV CSIC, Joint Res Unit Infect & Publ Hlth FISABIO, Valencia, Spain
:
Univ Valencia, Inst Integrat Syst Biol I2SysBio UV CSIC, Joint Res Unit Infect & Publ Hlth FISABIO, Valencia, Spain
CIBER Epidemiol & Publ Hlth, Madrid, Spain
Amaro, C:
Univ Valencia, Dept Microbiol & Ecol & Estruct Recerca Interdisc, Valencia, Spain
Green Published, gold
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