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https://www.readbyqxmd.com/read/29449394/draft-genome-sequence-of-lactobacillus-paracasei-dup-13076-which-exhibits-potent-antipathogenic-effects-against-salmonella-enterica-serovars-enteritidis-typhimurium-and-heidelberg
#1
Muhammed Shafeekh Muyyarikkandy, Fahad H Alqahtani, Ion Mandoiu, Mary Anne Amalaradjou
Lactobacillus paracasei DUP 13076 demonstrates antagonistic effects against the foodborne pathogens Salmonella enterica serovars Enteritidis, Typhimurium, and Heidelberg in coculture and in vitro experiments. Here, we report the draft genome sequence of Lactobacillus paracasei DUP 13076, which has a circular chromosome of 3,048,314 bp and a G+C content of 46.3%.
February 15, 2018: Genome Announcements
https://www.readbyqxmd.com/read/29449174/survival-of-salmonella-spp-in-minced-meat-packaged-under-vacuum-and-modified-atmosphere
#2
Jasna Djordjević, Marija Bošković, Marija Starčević, Jelena Ivanović, Nedjeljko Karabasil, Mirjana Dimitrijević, Ivana Branković Lazić, Milan Ž Baltić
The effect of different modified atmosphere packaging regimes on the behavior of Salmonella spp. on minced meat was studied. Minced meat was experimentally contaminated with a Salmonella spp. cocktail (S. Enteritidis, S. Typhimurium, S. Infantis and S. Arizonae), packaged under vacuum or modified atmosphere with initial headspaces containing 20%O 2 /50%CO 2 /30%N 2 and 20%O 2 /30%CO 2 /50%N 2 ) and stored at 3±1°C for 12 days. Samples were analyzed for Salmonella spp., viable and lactic acid bacteria count every third day...
February 12, 2018: Brazilian Journal of Microbiology: [publication of the Brazilian Society for Microbiology]
https://www.readbyqxmd.com/read/29436316/temporal-patterns-in-principal-salmonella-serotypes-in-the-usa-1996-2014
#3
M R Powell, S M Crim, R M Hoekstra, M S Williams, W Gu
Analysing temporal patterns in foodborne illness is important to designing and implementing effective food safety measures. The reported incidence of illness due to Salmonella in the USA. Foodborne Diseases Active Surveillance Network (FoodNet) sites has exhibited no declining trend since 1996; however, there have been significant annual trends among principal Salmonella serotypes, which may exhibit complex seasonal patterns. Data from the original FoodNet sites and penalised cubic B-spline regression are used to estimate temporal patterns in the reported incidence of illness for the top three Salmonella serotypes during 1996-2014...
February 13, 2018: Epidemiology and Infection
https://www.readbyqxmd.com/read/29432492/molecular-epidemiology-of-fluoroquinolone-resistant-salmonella-in-africa-a-systematic-review-and-meta-analysis
#4
Getachew Tadesse, Tesfaye S Tessema, Getenet Beyene, Abraham Aseffa
BACKGROUND: Wide-ranging evidence on the occurrence of fluoroquinolone (FQ) resistance genetic determinants in African Salmonella strains is not available. The main objectives of this study were to assess the heterogeneity, estimate pooled proportions and describe the preponderance of FQ-resistance determinants in typhoidal and non-typhoidal Salmonella (NTS) isolates of Africa. METHODS: Genetic and phenotypic data on 6103 Salmonella isolates were considered. Meta- and frequency analyses were performed depending on the number of studies by category, number of isolates and risks of bias...
2018: PloS One
https://www.readbyqxmd.com/read/29430190/salmonella-enterica-serovars-typhimurium-and-enteritidis-causing-mixed-infections-in-febrile-children-in-mozambique
#5
Vanesa García, Inácio Mandomando, Joaquim Ruiz, Silvia Herrera-León, Pedro L Alonso, M Rosario Rodicio
Background and purpose: Invasive nontyphoidal salmonellosis, mostly caused by serovars Typhimurium and Enteritidis of Salmonella enterica, has emerged as a major public health problem in sub-Saharan Africa. The aim of this study was the clinical and microbiological characterization of nontyphoidal salmonellosis episodes affecting febrile children in Mozambique. Patients and methods: The clinical records of the patients were evaluated, and S. enterica isolates were characterized with regard to serovar, phage type, antimicrobial resistance (phenotype/responsible genes), plasmid content, pulsed-field gel electrophoresis, and multilocus sequence typing...
2018: Infection and Drug Resistance
https://www.readbyqxmd.com/read/29429264/-surveillance-of-contamination-level-and-antimicrobial-resistance-analysis-of-salmonella-on-broiler-carcasses-after-chilling-in-4-poultry-slaughterhouses-of-henan-province
#6
L Bai, W W Li, H H Han, J K Liu, P Fu, X L Zhang, Y C Guo
Objective: Tests were carried out for obtaining contamination level and antimicrobial resistance of Salmonella on broiler carcasses after chilling in four poultry slaughterhouses in Henan. Methods: Totally, two hundred sixty nine broiler carcasses after chilling were collected in four slaughterhouses with the daily slaughter amount around 15 000 to 50 000. For qualitative analysis of Salmonella EFSA method was used and for quantitative analysis of Salmonella modified Rappaport-Vassiliadis most probable number (MSRV-MPN) method was used...
February 6, 2018: Zhonghua Yu Fang Yi Xue za Zhi [Chinese Journal of Preventive Medicine]
https://www.readbyqxmd.com/read/29407397/influence-of-ethanol-adaptation-on-salmonella-enterica-serovar-enteritidis-survival-in-acidic-environments-and-expression-of-acid-tolerance-related-genes
#7
Shoukui He, Yan Cui, Xiaojie Qin, Fen Zhang, Chunlei Shi, George C Paoli, Xianming Shi
Cross-protection to environmental stresses by ethanol adaptation in Salmonella poses a great threat to food safety because it can undermine food processing interventions. The ability of Salmonella enterica serovar Enteritidis (S. Enteritidis) to develop acid resistance following ethanol adaptation (5% ethanol for 1 h) was evaluated in this study. Ethanol-adapted S. Enteritidis mounted cross-tolerance to malic acid (a two-fold increase in minimum bactericidal concentration), but not to acetic, ascorbic, lactic, citric and hydrochloric acids...
June 2018: Food Microbiology
https://www.readbyqxmd.com/read/29402927/salmonella-enteritidis-st183-emerging-and-endemic-biotypes-affecting-western-european-hedgehogs-erinaceus-europaeus-and-people-in-great-britain
#8
Becki Lawson, Lydia H V Franklinos, Julia Rodriguez-Ramos Fernandez, Clare Wend-Hansen, Satheesh Nair, Shaheed K Macgregor, Shinto K John, Romain Pizzi, Alejandro Núñez, Philip M Ashton, Andrew A Cunningham, Elizabeth M de Pinna
The impacts of hedgehog (Erinaceus europaeus) Salmonella infection on public health and on animal welfare and conservation are unknown. We isolated Salmonella Enteritidis multi-locus sequence-type (ST)183 from 46/170 (27%) hedgehog carcasses (27 S. Enteritidis phage type (PT)11, 18 of a novel PT66 biotype and one with co-infection of these PTs) and from 6/208 (3%) hedgehog faecal samples (4 PT11, 2 PT66) from across Great Britain, 2012-2015. Whole genome phylogenetic analysis of the hedgehog isolates and ST183 from people in England and Wales found that PT11 and PT66 form two divergent clades...
February 5, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29390286/purulent-constrictive-pericarditis-caused-by-salmonella-enteritidis-in-a-patient-with-adult-onset-still-s-disease-a-case-report
#9
Chia-Cheng Kuo, Wen-Liang Yu, Chen-Hui Lee, Nan-Chun Wu
RATIONALE: Purulent pericarditis is a rare and usually fatal disease. Immunodeficiency state and preexisting pericardial effusion can predispose patients to infections. However, we are not aware of similar cases in patients with adult-onset Still's disease (AOSD). In addition, it is seldom caused by Salmonella bacteria. PATIENT CONCERNS: We report a 30-year-old woman with dyspnea on exertion and epigastric fullness. She was newly diagnosed with AOSD 4 months previously and medicated with prednisolone...
December 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29389589/designing-a-biochip-following-multiplex-polymerase-chain-reaction-for-the-detection-of-salmonella-serovars-typhimurium-enteritidis-infantis-hadar-and-virchow-in-poultry-products
#10
Yu-Cheng Chiang, Hsien-Huang Wang, Latha Ramireddy, Hsin-Yen Chen, Chia-Ming Shih, Chien-Ku Lin, Hau-Yang Tsen
Salmonella-contaminated foods, especially poultry-derived foods (eggs, chicken meat), are the major source of salmonellosis. Not only in the European Union (EU), but also in the United States, Japan, and other countries, has salmonellosis been an issue of concern for food safety control agencies. In 2005, EU regulation 1003/2005 set a target for the control and reduction of five target Salmonella enterica serovars-S. Typhimurium, S. Enteritidis, S. Infantis, S. Hadar, and S. Virchow-in breeding flocks. Thus, a simple biochip for the rapid detection of any of these five Salmonella serovars in poultry products may be required...
January 2018: Journal of Food and Drug Analysis
https://www.readbyqxmd.com/read/29380670/a-type-6-secretion-system-t6ss-encoded-gene-within-salmonella-enterica-serovar-enteritidis-contributes-to-virulence
#11
Bryan Troxell
Bacteria interact with their host through protein secretion systems and surface structures. Pathogenic bacteria encode protein secretion systems that promote the invasion of the host's tissue, the evasion of the host's immune response, the thwarting microbial competitors, and ultimately survival within the host. For motile bacteria, the presence of extracellular flagella provides the host with a structural motif used for activation of the immune system. Within this issue of Virulence, the article "Identification of a novel gene in ROD9 island of Salmonella Enteritidis involved in the alteration of virulence-associated protein expression" describes the contribution of a gene, SEN1005, toward host-pathogen interaction...
January 30, 2018: Virulence
https://www.readbyqxmd.com/read/29371366/draft-genome-sequences-of-four-salmonella-enterica-subsp-enterica-serovar-enteritidis-strains-implicated-in-infections-of-avian-and-human-hosts
#12
Ran An, Pengpeng Lin, Salim Bougouffa, Magbubah Essack, David Boxrud, Vladimir B Bajic, Sinisa Vidovic
Salmonella enterica subsp. enterica serovar Enteritidis is a wide-host-range pathogen. Occasionally, it is involved in invasive infections, leading to a high mortality rate. Here, we present the draft genome sequences of four S Enteritidis strains obtained from human and avian hosts that had been involved in bacteremia, gastroenteritis, and primary infections.
January 25, 2018: Genome Announcements
https://www.readbyqxmd.com/read/29366468/evaluation-of-wgs-based-approaches-for-investigating-a-food-borne-outbreak-caused-by-salmonella-enterica-serovar-derby-in-germany
#13
Sandra Simon, Eva Trost, Jennifer Bender, Stephan Fuchs, Burkhard Malorny, Wolfgang Rabsch, Rita Prager, Erhard Tietze, Antje Flieger
In Germany salmonellosis still represents the 2nd most common bacterial foodborne disease. The majority of infections are caused by Salmonella (S.) Typhimurium and S. Enteritidis followed by a variety of other broad host-range serovars. Salmonella Derby is one of the five top-ranked serovars isolated from humans and it represents one of the most prevalent serovars in pigs, thus bearing the potential risk for transmission to humans upon consumption of pig meat and products thereof. From November 2013 to January 2014 S...
May 2018: Food Microbiology
https://www.readbyqxmd.com/read/29366466/whole-genome-sequencing-reveals-an-outbreak-of-salmonella-enteritidis-associated-with-reptile-feeder-mice-in-the-united-kingdom-2012-2015
#14
Sanch Kanagarajah, Alison Waldram, Gayle Dolan, Claire Jenkins, Philip M Ashton, Antonio Isidro Carrion Martin, Robert Davies, Andrew Frost, Timothy J Dallman, Elizabeth M De Pinna, Jeremy I Hawker, Kathie A Grant, Richard Elson
Analysis of whole genome sequencing data uncovered a previously undetected outbreak of Salmonella Enteritidis that had been on-going for four years. Cases were resident in all countries of the United Kingdom and 40% of the cases were aged less than 11 years old. Initial investigations revealed that 30% of cases reported exposure to pet snakes. A case-control study was designed to test the hypothesis that exposure to reptiles or their feed were risk factors. A robust case-definition, based on the single nucleotide polymorphism (SNP) profile, increased the power of the analytical study...
May 2018: Food Microbiology
https://www.readbyqxmd.com/read/29361703/detection-of-antibodies-to-seven-priority-pathogens-in-backyard-poultry-in-trinidad-west-indies
#15
Arianne Brown Jordan, Pompei Bolfa, Silvia Marchi, Shakera Hemmings, Tashard Major, Rod Suepaul, Lemar Blake, Christopher Oura
Backyard poultry farms in Trinidad and Tobago (T&T) play a vital role in providing food and income for rural communities. There is currently no information on the presence and circulation of pathogens in backyard poultry farms in T&T, and little is known in relation to the potential risks of spread of these pathogens to the commercial poultry sector. In order to address this, serum samples were collected from 41 chickens on five backyard farms taken from selected locations in Trinidad. Samples were tested for antibodies to seven priority pathogens of poultry by enzyme-linked immunosorbent assay (ELISA)...
January 20, 2018: Veterinary Sciences
https://www.readbyqxmd.com/read/29360401/backyard-farms-represent-a-source-of-wide-host-range-salmonella-phages-that-lysed-the-most-common-salmonella-serovars
#16
Dácil Rivera, Viviana Toledo, Francisca DI Pillo, Fernando Dueñas, Rodolfo Tardone, Christopher Hamilton-West, Kitiya Vongkamjan, Martin Wiedmann, Andrea I Moreno Switt
The genus Salmonella has more than 2,600 serovars, and this trait is important when considering interventions for Salmonella control. Bacteriophages that are used for biocontrol must have an exclusively lytic cycle and the ability to lyse several Salmonella serovars under a wide range of environmental conditions. Salmonella phages were isolated and characterized from 34 backyard production systems (BPSs) with a history of Salmonella infections. BPSs were visited once, and cloacal or fecal samples were processed for phage isolation...
January 23, 2018: Journal of Food Protection
https://www.readbyqxmd.com/read/29358796/antimicrobial-protection-of-minced-pork-meat-with-the-use-of-swamp-cranberry-vaccinium-oxycoccos-l-fruit-and-pomace-extracts
#17
Agata Stobnicka, Małgorzata Gniewosz
The objective of the study was to determine the antimicrobial activity of Swamp Cranberry (Vaccinium oxycoccos) fruit and pomace extracts (FSCE and PSCE) and their efficiency in minced pork meat. Ethanol (96 and 40%) and water were used for raw material extraction. Organic acids, flavonols, terpenes and stilbenes composition of the extracts was determined using HPLC. Minimal inhibitory concentration and minimum bactericidal/fungicidal concentration were determined for bacteria and fungi strains using the broth macrodilution method...
January 2018: Journal of Food Science and Technology
https://www.readbyqxmd.com/read/29358795/jabuticaba-myrciaria-jaboticaba-juice-obtained-by-steam-extraction-phenolic-compound-profile-antioxidant-capacity-microbiological-stability-and-sensory-acceptability
#18
Kim Ohanna Pimenta Inada, Paula Andrés Duarte, Jacqueline Lapa, Marco Antônio Lemos Miguel, Mariana Monteiro
Jabuticaba (Myrciaria jaboticaba) is a dark-colored fruit native to Brazil that has a desirable flavor and high anthocyanin content. In the present study, jabuticaba juice was produced by steam-extraction and the phenolic compound profile, antioxidant capacity, instrumental color, and microbiological quality were evaluated during 90 days of storage at 25 °C. Cyanidin-3-O-glucoside represented 45% of the total phenolic content of the juice, which reduced with extent of 80% during storage. Total phenolic content of the juice increased by 59% during 90 days of storage, which entailed, average 4...
January 2018: Journal of Food Science and Technology
https://www.readbyqxmd.com/read/29354293/bi-valent-polysaccharides-of-vi-capsular-and-o9-o-antigen-in-attenuated-salmonella-typhimurium-induce-strong-immune-responses-against-these-two-antigens
#19
Pei Li, Qing Liu, Hongyan Luo, Kang Liang, Yue Han, Kenneth L Roland, Roy Curtiss, Qingke Kong
Salmonella Typhi is the causative agent of typhoid fever in humans, responsible for approximately 21 million infections and 222,000 deaths globally each year. The current licensed vaccines provide moderate protection to recipients aged >2 years. Prior work on typhoid vaccines has focused on injectable Vi capsular polysaccharide or Vi-protein conjugates and live, oral attenuated S. Typhi vaccines to induce humoral anti-Vi antibodies, while the value and importance of anti-O9 antibodies is less well established...
2018: NPJ Vaccines
https://www.readbyqxmd.com/read/29351771/characterization-of-salmonella-enterica-from-invasive-bloodstream-infections-and-water-sources-in-rural-ghana
#20
Denise Dekker, Ralf Krumkamp, Daniel Eibach, Nimako Sarpong, Kennedy Gyau Boahen, Michael Frimpong, Elina Fechtner, Sven Poppert, Ralf Matthias Hagen, Norbert Georg Schwarz, Yaw Adu-Sarkodie, Ellis Owusu-Dabo, Justin Im, Florian Marks, Hagen Frickmann, Jürgen May
BACKGROUND: Non-typhoidal Salmonella (NTS) cause the majority of bloodstream infections in Ghana, however the mode of transmission and source of invasive NTS in Africa are poorly understood. This study compares NTS from water sources and invasive bloodstream infections in rural Ghana. METHODS: Blood from hospitalised, febrile children and samples from drinking water sources were analysed for Salmonella spp. Strains were serotyped to trace possible epidemiological links between human and water-derived isolates...
January 19, 2018: BMC Infectious Diseases
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