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https://www.readbyqxmd.com/read/28540296/evaluation-of-the-complex-nomenclature-of-the-clinically-and-veterinary-significant-pathogen-salmonella
#1
REVIEW
Michael P Ryan, Jean O'Dwyer, Catherine C Adley
Salmonella encompasses a vast and highly related population of clinically and veterinary significant pathogens. The genus is responsible for an array of diseases such as typhoid fever and salmonellosis (a variety of illnesses including gastroenteritis), which cause public health issues globally. Even with the global recognition of Salmonella as a significant human and veterinary pathogen, the highly complex and evolving nomenclature system of Salmonella is problematic for clinicians, veterinarians, and microbiologists to comprehend...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28539041/outer-membrane-vesicles-derived-from-salmonella-enteritidis-protect-against-the-virulent-wild-type-strain-infection-in-a-mouse-model
#2
Qiong Liu, Jie Yi, Kang Liang, Xiangmin Zhang, Qing Liu
Food-borne contamination and salmonellosis caused by Salmonella Enteritidis (S. Enteritidis) are a significant threat to human health and poultry enterprises. Outer membrane vesicles (OMVs), which are naturally secreted by gram-negative bacteria, could be a good vaccine option because they have many biologically active substances, including lipopolysaccharides (LPS), outer membrane proteins (OMPs), and phospholipids, as well as periplasmic components. In the present study, we purified OMVs derived from S. Enteritidis and analyzed their characteristics through silver staining and sodium dodecyl sulfate polyacrylamide gel electrophoresis (SDS-PAGE)...
May 25, 2017: Journal of Microbiology and Biotechnology
https://www.readbyqxmd.com/read/28526020/salmonella-serotypes-and-their-antimicrobial-susceptibility-in-apparently-healthy-dogs-in-addis-ababa-ethiopia
#3
Bitsu Kiflu, Haile Alemayehu, Mukarim Abdurahaman, Yohannes Negash, Tadesse Eguale
BACKGROUND: The close bond between pet animals and family members poses risk of infection with zoonotic bacterial pathogens such as Salmonella. No data is available on occurrence of Salmonella in dogs in Ethiopia. The aim of this study was therefore to determine the prevalence, serotype distribution and antimicrobial resistance of Salmonella from feces of apparently healthy dogs in Addis Ababa, Ethiopia. RESULTS: Of the total 360 dogs examined, 42 (11.7%; 95% Confidence limit of 8...
May 19, 2017: BMC Veterinary Research
https://www.readbyqxmd.com/read/28513778/phenotypic-and-genotypic-characterization-of-salmonella-spp-isolated-from-foods-and-clinical-samples-in-brazil
#4
Andrea L Miranda, Soraia M Cordeiro, Joice N Reis, Lucas G Cardoso, Alaíse G Guimarães
Increasing antimicrobial resistance in Salmonella species has been a serious problem for public health worldwide. This study examines Salmonella spp. recovered from foods and clinical samples on serotype, antimicrobial resistance and PFGE genotypes. It identified 91 salmonellae, belonging to 31 different serotypes, from 36 isolates from food and 55 clinical samples. Salmonella Infantis (16.5%) and Salmonella Enteritidis (13.7%) are the most common among food isolates, whereas Salmonella Enteritidis (29.0%) and Salmonella Typhimurium (16...
May 15, 2017: Anais da Academia Brasileira de Ciências
https://www.readbyqxmd.com/read/28507536/temporal-genomic-phylogeny-reconstruction-indicates-a-geospatial-transmission-path-of-salmonella-cerro-in-the-united-states-and-a-clade-specific-loss-of-hydrogen-sulfide-production
#5
Jasna Kovac, Kevin J Cummings, Lorraine D Rodriguez-Rivera, Laura M Carroll, Anil Thachil, Martin Wiedmann
Salmonella Cerro has become one of the most prevalent Salmonella serotypes isolated from dairy cattle in several U.S. states, including New York where it represented 36% of all Salmonella isolates of bovine origin in 2015. This serotype is commonly isolated from dairy cattle with clinical signs of salmonellosis, including diarrhea and fever, although it has also been identified in herds without evidence of clinical disease or decreased production. To better understand the transmission patterns and drivers of its geographic spread, we have studied the genomic similarity and microevolution of S...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28497996/characterization-of-the-salmonella-enterica-serotype-isangi-isolated-from-patients-for-the-first-time-in-china
#6
Xin-Peng Li, Ri-Hong Gao, Pei-Bin Hou, Yan-Yan Ren, Hua-Ning Zhang, Kui-Ying Jiang, Yu-Zhen Chen, Zi-Gang Qi, Min Xu, Zhen-Wang Bi
No studies have reported the isolation of serotype Salmonella Isangi from cases of salmonellosis in mainland China. We investigated an outbreak of foodborne disease with salmonella and collected the samples from the patients and surplus foods. Salmonella strains were isolated and the serotype was identified according to the Kauffmann-White scheme. The relatedness of the isolates was determined using pulsed-field gel electrophoresis (PFGE) and whole genome sequencing (WGS). Antimicrobial susceptibility was conducted by the broth microdilution method...
May 12, 2017: Foodborne Pathogens and Disease
https://www.readbyqxmd.com/read/28463629/fatal-systemic-salmonellosis-in-a-florida-manatee-trichechus-manatus-latirostris
#7
Bryan S Vorbach, David S Rotstein, Nicole I Stacy, Carla Mavian, Marco Salemi, Thomas B Waltzek, Martine de Wit
A subadult male Florida manatee ( Trichechus manatus latirostris) stranded dead on Florida's Atlantic coast in January 2015. Necropsy and histopathologic findings confirmed chronic systemic bacterial infection caused by Salmonella enterica serotype IV 50:z4,z23,:- involving renal, respiratory, lymphatic, and skeletal systems. This was a unique case of systemic salmonellosis in a Florida manatee.
May 2, 2017: Journal of Wildlife Diseases
https://www.readbyqxmd.com/read/28463084/fate-of-salmonella-throughout-production-and-refrigerated-storage-of-tahini
#8
Yangjunna Zhang, Susanne E Keller, Elizabeth M Grasso-Kelley
Tahini, a low-moisture food that is made from sesame seeds, has been implicated in outbreaks of salmonellosis. In this study, the fate of Salmonella was determined through an entire process for the manufacture of tahini, including a 24-h seed soaking period before roasting, subsequent grinding, and storage at refrigeration temperature. Salmonella populations increased by more than 3 log CFU/g during a 24-h soaking period, reaching more than 7 log CFU/g. Survival of Salmonella during roasting at three temperatures, 95, 110, and 130°C, was assessed using seeds on which Salmonella was grown...
May 2, 2017: Journal of Food Protection
https://www.readbyqxmd.com/read/28459222/isolation-and-characterization-of-salmonella-enteritidis-and-salmonella-typhimurium-from-chicken-meat-in-egypt
#9
Reda Tarabees, Mohamed S A Elsayed, Reyad Shawish, Shereen Basiouni, Awad A Shehata
INTRODUCTION: Salmonella enterica serovars Enteritidis and Typhimurium represent the major serovars associated with human salmonellosis. Contamination of meat products with these serovars is considered the main source of infection. METHODOLOGY: In this study, 100 raw chicken meat samples were investigated for the presence of Salmonella spp., which were subsequently identified based on biochemical and serological tests as well as matrix-assisted laser desorption/ionization time-of-flight (MALDI-TOF) profile...
April 30, 2017: Journal of Infection in Developing Countries
https://www.readbyqxmd.com/read/28456552/subtyping-of-canadian-isolates-of-salmonella-enteritidis-using-multiple-locus-variable-number-tandem-repeat-analysis-mlva-alone-and-in-combination-with-pulsed-field-gel-electrophoresis-pfge-and-phage-typing
#10
Kim Ziebell, Linda Chui, Robin King, Suzanne Johnson, Patrick Boerlin, Roger P Johnson
Salmonella enterica subspecies enterica serovar Enteritidis (SE) is one of the most common causes of human salmonellosis and in Canada currently accounts for over 40% of human cases. Reliable subtyping of isolates is required for outbreak detection and source attribution. However, Pulsed-Field Gel Electrophoresis (PFGE), the current standard subtyping method for Salmonella spp., is compromised by the high genetic homogeneity of SE. Multiple Locus Variable Number Tandem Repeat Analysis (MLVA) was introduced to supplement PFGE, although there is a lack of data on the ability of MLVA to subtype Canadian isolates of SE...
April 26, 2017: Journal of Microbiological Methods
https://www.readbyqxmd.com/read/28450854/microbial-disease-spectrum-linked-to-a-novel-il-12r%C3%AE-1-n-terminal-signal-peptide-stop-gain-homozygous-mutation-with-paradoxical-receptor-cell-surface-expression
#11
Thais Louvain de Souza, Regina C de Souza Campos Fernandes, Juliana Azevedo da Silva, Vladimir Gomes Alves Júnior, Adelia Gomes Coelho, Afonso C Souza Faria, Nabia M Moreira Salomão Simão, João T Souto Filho, Caroline Deswarte, Stéphanie Boisson-Dupuis, Dara Torgerson, Jean-Laurent Casanova, Jacinta Bustamante, Enrique Medina-Acosta
Patients with Mendelian Susceptibility to Mycobacterial Diseases (MSMD) exhibit variable vulnerability to infections by mycobacteria and other intramacrophagic bacteria (e.g., Salmonella and Klebsiella) and fungi (e.g., Histoplasma, Candida, Paracoccidioides, Coccidioides, and Cryptococcus). The hallmark of MSMD is the inherited impaired production of interferon gamma (IFN-γ) or the lack of response to it. Mutations in the interleukin (IL)-12 receptor subunit beta 1 (IL12RB1) gene accounts for 38% of cases of MSMD...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28443073/feed-supplementation-with-red-seaweeds-chondrus-crispus-and-sarcodiotheca-gaudichaudii-reduce-salmonella-enteritidis-in-laying-hens
#12
Garima Kulshreshtha, Bruce Rathgeber, Janice MacIsaac, Martine Boulianne, Lehoux Brigitte, Glenn Stratton, Nikhil A Thomas, Alan T Critchley, Jeff Hafting, Balakrishnan Prithiviraj
Salmonella Enteritidis is vertically transmitted to eggs from laying hens through infected ovaries and oviducts. S. Enteritidis can also penetrate the eggshell from contaminated feces. Reducing S. Enteritidis in laying hens is vital to provide safer eggs and minimize the spread of salmonellosis to humans. Antibiotics have been widely used to control bacterial diseases in broilers and laying hens. However, there is a major concern that the use of antibiotics leads to the development of antibiotic resistance and adverse effects on microbiota of the treated birds...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28439039/invs-coordinates-expression-of-prgh-and-fimz-and-is-required-for-invasion-of-epithelial-cells-by-salmonella-enterica-serovar-typhimurium
#13
Lu Wang, Xia Cai, Shuyan Wu, Rajdeep Bomjan, Ernesto S Nakayasu, Kristian Händler, Jay C D Hinton, Daoguo Zhou
Deep sequencing has revolutionized our understanding of the bacterial RNA world, and has facilitated the identification of 280 sRNAs in Salmonella Despite suspicions that sRNAs may play important roles in Salmonella pathogenesis, the functions of most sRNAs remain unknown. To advance our understanding of RNA biology in Salmonella virulence, we searched for sRNAs required for bacterial invasion into non-phagocytic cells. After screening 75 sRNAs, we discovered that ablation of InvS caused a significant decrease of Salmonella invasion into epithelial cells...
April 24, 2017: Journal of Bacteriology
https://www.readbyqxmd.com/read/28424675/safety-protective-immunity-and-diva-capability-of-a-rough-mutant-salmonella-pullorum-vaccine-candidate-in-broilers
#14
Rongxian Guo, Yang Jiao, Zhuoyang Li, Shanshan Zhu, Xiao Fei, Shizhong Geng, Zhiming Pan, Xiang Chen, Qiuchun Li, Xinan Jiao
Salmonella enterica subsp. enterica serovar Gallinarum biovar Pullorum (Salmonella Pullorum) is highly adapted to chickens causing an acute systemic disease that results in high mortality. Vaccination represents one approach for promoting animal health, food safety and reducing environmental persistence in Salmonella control. An important consideration is that Salmonella vaccination in poultry should not interfere with the salmonellosis monitoring program. This is the basis of the DIVA (Differentiation of Infected and Vaccinated Animals) program...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28414255/a-quantitative-assessment-of-the-risk-of-human-salmonellosis-arising-from-the-consumption-of-almonds-in-the-united-states-the-impact-of-preventive-treatment-levels
#15
Sofia M Santillana Farakos, Régis Pouillot, Rhoma Johnson, Judith Spungen, Insook Son, Nathan Anderson, Jane M Van Doren
The presence of Salmonella on almonds continues to result in product-related outbreaks and recalls in the United States. In this study, the impact of microbial reduction treatment levels (1 to 5 log CFU) on the risk of human salmonellosis from the consumption of almond kernels in the United States was evaluated. An exposure model, including major steps in almond processing, was used to estimate prevalence and levels of contamination of Salmonella on almonds at the point of consumption. A Salmonella dose-response model and consumption data for almonds in the United States were used to assess risk of illness per serving and per year, quantifying variability and uncertainty separately...
April 17, 2017: Journal of Food Protection
https://www.readbyqxmd.com/read/28406162/mucosal-iga-and-ifn-%C3%AE-cd8-t-cell-immunity-are-important-in-the-efficacy-of-live-salmonella-enteria-serovar-choleraesuis-vaccines
#16
Liangquan Zhu, Xinxin Zhao, Qing Yin, Xianyong Liu, Xiang Chen, Chunjuan Huang, Xun Suo
Salmonellosis, a disease caused by non-typhoidal Salmonella strains which can be transmitted from swine to humans, is one of the leading public health problems around the world. Paratyphoid of swine is controlled by vaccinating swine with Salmonella enterica serovar Choleraesuis (S. Choleraesuis) live vaccine strain C500 in China. Although the vaccine has good prophylactic efficacy, the mechanism of immunogenicity is unclear. Using a C500-derived paratyphoid thermo-stable live vaccine (PTSL vaccine), we demonstrated that the PTSL vaccine induces strong primary and memory immune responses in piglets...
April 13, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28400019/molecular-characterization-and-antimicrobial-resistance-of-salmonella-enterica-from-swine-slaughtered-in-two-different-types-of-philippine-abattoir
#17
Alyzza Marie B Calayag, Phyllis Anne P Paclibare, Pauline Dianne M Santos, Corinne Aimee C Bautista, Windell L Rivera
Salmonella enterica is a well-known pathogen commonly acquired from the consumption of contaminated food. It has been estimated to affect millions of humans and cause hundreds of thousands of deaths per year globally. Pork, one of the most commonly consumed meats worldwide, has been identified as one of the main sources of human salmonellosis. In this study, we aimed to detect and characterize S. enterica from slaughtered swine and generate antimicrobial resistance profiles of select isolates. Tonsils and jejunum with mesenteric lymph nodes (MLN) were collected from a total of 240 swine from eight abattoirs (five accredited and three locally registered abattoirs) across Metro Manila...
August 2017: Food Microbiology
https://www.readbyqxmd.com/read/28385135/an-outbreak-of-salmonellosis-associated-with-duck-prosciutto-at-a-northern-territory-restaurant
#18
Anthony Dk Draper, Claire N Morton, Joshua Ni Heath, Justin A Lim, Anninka I Schiek, Stephanie Davis, Vicki L Krause, Peter G Markey
In June 2015, an outbreak of salmonellosis occurred among people who had eaten at a restaurant in Darwin, Northern Territory over 2 consecutive nights. We conducted a retrospective cohort study of diners who ate at the restaurant on 19 and 20 June 2015. Diners were telephoned and a questionnaire recorded symptoms and menu items consumed. An outbreak case was defined as anyone with laboratory confirmed Salmonella Typhimurium PT9 (STm9) or a clinically compatible illness after eating at the restaurant. Environmental health officers inspected the premises and collected food samples...
March 31, 2017: Communicable Diseases Intelligence Quarterly Report
https://www.readbyqxmd.com/read/28385134/an-outbreak-of-salmonella-saintpaul-gastroenteritis-after-attending-a-school-camp-in-the-northern-territory-australia
#19
Anthony Dk Draper, Claire N Morton, Joshua Ni Heath, Justin A Lim, Peter G Markey
An outbreak of salmonellosis occurred following attendance at a school camp between 5 and 8 August 2014 in a remote area of the Northern Territory, Australia. We conducted a retrospective cohort study via telephone interviews, using a structured questionnaire that recorded symptoms and exposures to foods and activities during the camp. A case was anyone with laboratory confirmed Salmonella Saintpaul infection or a clinically compatible illness after attending the camp. Environmental health officers from the Environmental Health Branch undertook an investigation and collected water and environmental samples...
March 31, 2017: Communicable Diseases Intelligence Quarterly Report
https://www.readbyqxmd.com/read/28381209/supplemental-invasion-of-salmonella-from-the-perspective-of-salmonella-enterica-serovars-kentucky-and-typhimurium
#20
Kevin Howe, Sanaz Salehi, R Hartford Bailey, John P Brooks, Robert Wills, Mark L Lawrence, Attila Karsi
BACKGROUND: Critical to the development of Salmonellosis in humans is the interaction of the bacterium with the epithelial lining of the gastrointestinal tract. Traditional scientific reasoning held type III secretion system (T3SS) as the virulence factor responsible for bacterial invasion. In this study, field-isolated Salmonella enterica serovar Kentucky and a known human pathogen Salmonella enterica serovar Typhimurium were mutated and evaluated for the invasion of human colorectal adenocarcinoma epithelial cells...
April 5, 2017: BMC Microbiology
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