Please use this identifier to cite or link to this item: http://hdl.handle.net/1893/23268
Appears in Collections:Aquaculture Journal Articles
Peer Review Status: Refereed
Title: Salmonella infection in grey seals (Halichoerus grypus), a marine mammal sentinel species: pathogenicity and molecular typing of Salmonella strains compared with human and livestock isolates
Authors: Baily, Johanna
Foster, Geoff
Brown, Derek
Davison, Nick
Coia, John E
Watson, Eleanor
Pizzi, Romain
Willoughby, Kim
Hall, Ailsa J
Dagleish, Mark P
Contact Email: j.l.baily@stir.ac.uk
Issue Date: Mar-2016
Publisher: Wiley-Blackwell for the Society for Applied Microbiology
Citation: Baily J, Foster G, Brown D, Davison N, Coia JE, Watson E, Pizzi R, Willoughby K, Hall AJ & Dagleish MP (2016) Salmonella infection in grey seals (Halichoerus grypus), a marine mammal sentinel species: pathogenicity and molecular typing of Salmonella strains compared with human and livestock isolates, Environmental Microbiology, 18 (3), pp. 1078-1087.
Abstract: Microbial pollution of the marine environment through land–sea transfer of human and livestock pathogens is of concern.Salmonellawas isolated from rectal swabs of free-ranging and stranded grey seal pups (21.1%; 37/175) and compared with strains from the same serovars isolated from human clinical cases, livestock, wild mammals and birds in Scotland, UK to characterize possible transmission routes using pulsed-field gel electrophoresis and multi-locus variable number of tandem repeat analyses. A higher prevalence ofSalmonellawas found in pups exposed to seawater, suggesting that this may represent a source of this pathogen.SalmonellaBovismorbificans was the most common isolate (18.3% pups; 32/175) and was indistinguishable from isolates found in Scottish cattle.Salmonella Typhimurium was infrequent (2.3% pups; 4/175), mostly similar to isolates found in garden birds and, in one case, identical to a highly multidrug resistant strain isolated from a human child.Salmonella Haifa was rare (1.1% pups; 2/175), but isolates were indistinguishable from that of a human clinical isolate. These results suggest thatS.Bovismorbificans may circulate between grey seal and cattle populations and that bothS.Typhimurium andS.Haifa isolates are shared with humans, raising concerns of microbial marine pollution.
Type: Journal Article
URI: http://hdl.handle.net/1893/23268
DOI Link: http://dx.doi.org/10.1111/1462-2920.13219
Rights: The publisher does not allow this work to be made publicly available in this Repository. Please use the Request a Copy feature at the foot of the Repository record to request a copy directly from the author. You can only request a copy if you wish to use this work for your own research or private study.
Affiliation: Aquaculture
The Scottish Agricultural College
Scottish Salmonella, Shigella and Clostridium difficile Reference Laboratory
The Scottish Agricultural College
Scottish Salmonella, Shigella and Clostridium difficile Reference Laboratory
The Moredun Research Institute
Royal Zoological Society of Scotland
The Moredun Research Institute
University of St Andrews
The Moredun Research Institute

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