Vibrio parahaemolyticusrisk assessment in the Pacific Northwest: it's not what's in the water

Nilsson, William B; Paranjpye, Rohinee N; Hamel, Owen S; Hard, Clara; Strom, Mark S

doi:10.1093/femsec/fiz027

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Vibrio parahaemolyticusrisk assessment in the Pacific Northwest: it's not what's in the water

2019
By Nilsson, William B ; Paranjpye, Rohinee N ; Hamel, Owen S ; ...
Source: FEMS Microbiology Ecology, 95(4)

[PDF-1.53 MB]

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Journal Title:

FEMS Microbiology Ecology
Personal Author:

Nilsson, William B ; Paranjpye, Rohinee N ; Hamel, Owen S ; Hard, Clara ; Strom, Mark S

Nilsson, William B ; Paranjpye, Rohinee N ; Hamel, Owen S ; Hard, Clara ; Strom, Mark S Less -
NOAA Program & Office:

NMFS (National Marine Fisheries Service) ; NWFSC (Northwest Fisheries Science Center)

NMFS (National Marine Fisheries Service) ; NWFSC (Northwest Fisheries Science Center) Less -
Description:

The Gram-negative bacterium Vibrio parahaemolyticus (Vp) is a major cause of illness associated with the consumption of raw or undercooked seafood, primarily oysters. This species is a natural member of the bacterial community in brackish waters and is bioaccumulated by oysters through filter feeding. Only a subset of strains is thought to be pathogenic. Currently known virulence markers include the gene for the thermostable direct hemolysin (tdh). In this work we analyzed water and oysters for total Vp and strains encoding tdh from 26 oyster-growing areas of the Puget Sound and Pacific coast of Washington state in 2007 and 2008. In addition, possible plankton-associated Vp were assessed from net tow samples. The density of both total and tdh+ Vp in the water column were considerably higher in 2008 than 2007. However, the concentrations of both total and tdh+ Vp in the oyster tissue was similar for both years. A high proportion of Vp strains in the water column was found to be tdh+ in both 2007 and 2008; however, tdh+ strains were detected at much lower levels in oysters. The data show that analysis of Vp density in the oysters is a better risk assessment tool than density in the overlying water column.
Keywords:

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Applied Microbiology And Biotechnology Ecology Microbiology
Source:

FEMS Microbiology Ecology, 95(4)
DOI:

https://doi.org/10.1093/femsec/fiz027
ISSN:

1574-6941
Format:

PDF
Publisher:

Oxford University Press (OUP)
Document Type:

Journal Article
License:

https://creativecommons.org/publicdomain/zero/1.0/
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CC0 Public Domain
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Library
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urn:sha-512:f2842d9cae1f50325c53dadb181987004b720eed28fa75fab885e0a85f2ebe340fc201413b6ac97b46ba21cf6ca5f1ae7267817b310e011e1a1219f9a644335b
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https://repository.library.noaa.gov/view/noaa/62945/noaa_62945_DS1.pdf
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Vibrio parahaemolyticusrisk assessment in the Pacific Northwest: it's not what's in the water

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