In this study, strains were collected from a large number of aquatic products globally and found that temperature has an impact on the virulence of these bacteria. As global temperatures rise, mutations in a gene marker called thermolabile hemolysin () also increase. This suggests that environmental isolates adapt to the warming environment and become more pathogenic. The findings can help in developing tools to analyze and monitor these bacteria as well as assess any link between climate change and vibrio-associated diseases, which could be used for forecasting outbreaks associated with them.
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http://dx.doi.org/10.1128/spectrum.01502-23 | DOI Listing |
Pathogens
September 2024
Experimental Seafood Processing Laboratory, Coastal Research & Extension Center, Mississippi State University, Pascagoula, MS 39567, USA.
is an important foodborne bacterium that causes severe gastroenteritis following the consumption of contaminated seafood. To identify and determine its pathogenicity, the U.S.
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January 2024
Experimental Seafood Processing Laboratory, Coastal Research & Extension Center, Mississippi State University, Pascagoula, MS 39567, USA.
causes severe gastroenteritis in humans after consuming contaminated raw or undercooked seafood. A species-specific marker, the thermolabile hemolysin () gene, and two pathogenic markers, thermostable-related hemolysin () and thermostable-direct hemolysin () genes, have been used to identify and determine its pathogenicity using both PCR and qPCR assays. To enable testing in field conditions with limited resources, this study aimed to develop a simple and rapid method to detect the species-specific () and pathogenic ( and ) genes of using multienzyme isothermal rapid amplification (MIRA) combined with a lateral-flow dipstick (LFD).
View Article and Find Full Text PDFAnimals (Basel)
November 2023
Department of Poultry and Fish Diseases, Faculty of Veterinary Medicine, Alexandria University, Alexandria 22758, Egypt.
In this study, strain C24 was isolated from cases of winter mortalities of hatchery-reared European seabass () broodstock in Türkiye. The first mortalities were reported in September 2016 and occurred annually in early autumn/late winter until the end of February 2019, when 15% of accumulated mortality was recorded. Diseased moribund fish exhibited general septicemic signs, including dermal ulcerations with hemorrhagic margins, distended abdomens, and hemorrhages below the pectorals, pelvic fins, and at the operculum.
View Article and Find Full Text PDFMicrobiol Spectr
December 2023
CAS Key Laboratory of Pathogen Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences , Beijing, China.
In this study, strains were collected from a large number of aquatic products globally and found that temperature has an impact on the virulence of these bacteria. As global temperatures rise, mutations in a gene marker called thermolabile hemolysin () also increase. This suggests that environmental isolates adapt to the warming environment and become more pathogenic.
View Article and Find Full Text PDFJ Food Prot
October 2023
Istituto Zooprofilattico Sperimentale Della Sardegna, Struttura Complessa di Microbiologia e Ispezione Degli Alimenti di Origine Animale, Via Duca Degli Abruzzi 8, 07100 Sassari, Italy.
The aim of the present study was to evaluate Vibrio parahaemolyticus occurrences in bivalve molluscs harvested from Sardinian coastal environments between 2013 and 2015. The prevalence of pathogenic V. parahaemolyticus isolates is based on the detection of the two major virulence genes thermostable direct hemolysin (tdh) and thermolabile hemolysin (trh) To assess changes between 2011 and 2018 in the prevalence of V.
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