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
Johanna L BailyMark P Dagleish

Abstract

Microbial pollution of the marine environment through land-sea transfer of human and livestock pathogens is of concern. Salmonella was 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 of Salmonella was found in pups exposed to seawater, suggesting that this may represent a source of this pathogen. Salmonella Bovismorbificans 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 that S. Bovismorbificans may circulate between grey seal and cattle populations and that both S. Typhimurium and S. Haifa i...Continue Reading

References

Jul 1, 1980·The British Veterinary Journal·J R BakerA Baird
May 6, 1995·The Veterinary Record·J R BakerJ F Watkins
Jan 1, 1996·The Journal of Veterinary Medical Science·L TuchiliC Kaneuchi
Nov 10, 1998·The Veterinary Record·H ImberechtsP Pohl
Jul 7, 2000·The Journal of Antimicrobial Chemotherapy·E J Threlfall
May 15, 2002·International Journal of Medical Microbiology : IJMM·Almut Liesegang, Helmut Tschäpe
Mar 13, 2003·Euro Surveillance : Bulletin Européen Sur Les Maladies Transmissibles = European Communicable Disease Bulletin·T M PetersUNKNOWN Salm-gene project
Jul 1, 1950·Journal of Bacteriology·R SAPIRO, W HIRSCH
Feb 21, 2006·Emerging Infectious Diseases·Robyn A StoddardPatricia A Conrad
Dec 6, 2006·Immunology and Cell Biology·Bryan CoburnB B Finlay
Mar 28, 2008·Methods in Molecular Biology·Wolfgang Rabsch
Jun 3, 2008·Tropical Animal Health and Production·Endrias Zewdu, Poppe Cornelius
Oct 3, 2008·Diseases of Aquatic Organisms·R A StoddardFrances M D Gulland
Oct 21, 2009·Research in Microbiology·Martine GuibourdencheFrançois-Xavier Weill
Feb 18, 2010·Clinical Infectious Diseases : an Official Publication of the Infectious Diseases Society of America·Shannon E MajowiczUNKNOWN International Collaboration on Enteric Disease 'Burden of Illness' Studies
Nov 22, 2011·Journal of Wildlife Diseases·Sebastian E CarrascoJonna A K Mazet

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.