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https://www.readbyqxmd.com/read/27907974/-salmonellosis-a-real-threat-for-infants
#1
Václav Musil, Lenka Krbková, Peter Mikolášek, Lukáš Homola, Adriana Braunová
Salmonella spp. are a common cause of bacterial gastroenteritis. In infants, Salmonella infection is uncommon, posing a higher risk for a severe course. The authors present a case of a 3-month-old infant with suspected Salmonella sepsis. Also discussed are the correct approach to therapy and potential errors in the treatment of the youngest age groups.
September 2016: Klinická Mikrobiologie a Infekc̆ní Lékar̆ství
https://www.readbyqxmd.com/read/27900459/isolation-characterization-and-bioinformatic-analyses-of-lytic-salmonella-enteritidis-phages-and-tests-of-their-antibacterial-activity-in-food
#2
Han Han, Xiaoting Wei, Yi Wei, Xiufeng Zhang, Xuemin Li, Jinzhong Jiang, Ran Wang
Salmonella Enteritidis remains a major threat for food safety. To take efforts to develop phage-based biocontrol for S. Enteritidis contamination in food, in this study, the phages against S. Enteritidis were isolated from sewage samples, characterized by host range assays, DNA restriction enzyme pattern analyses, and transmission electron microscope observations, and tested for antibacterial activity in food; some potent phages were further characterized by bioinformatic analyses. Results showed that based on the plaque quality and host range, seven lytic phages targeting S...
November 30, 2016: Current Microbiology
https://www.readbyqxmd.com/read/27892879/cytokine-activation-during-embryonic-development-and-in-hen-ovary-and-vagina-during-reproductive-age-and-salmonella-infection
#3
M Anastasiadou, G Michailidis
Salmonellosis is one of the most important zoonotic diseases and is usually associated with consumption of Salmonella Enteritidis (SE) contaminated poultry meat or eggs. Contamination with SE is usually the result of infection of the digestive tract, or reproductive organs, especially the ovary and vagina. Thus, knowledge of endogenous innate immune mechanisms operating in the ovary and vagina of hen is an emerging aspect of reproductive physiology. Cytokines are key factors for triggering the immune response and inflammation in chicken to Salmonella infection...
September 28, 2016: Research in Veterinary Science
https://www.readbyqxmd.com/read/27889138/405%C3%A2-%C3%A2-%C3%A2-5%C3%A2-nm-light-emitting-diode-illumination-causes-photodynamic-inactivation-of-salmonella-spp-on-fresh-cut-papaya-without-deterioration
#4
Min-Jeong Kim, Woo Suk Bang, Hyun-Gyun Yuk
This study evaluated the antibacterial effect of 405 ± 5 nm light emitting diode (LED) illumination against four Salmonella serovars on fresh-cut papaya and on fruit quality at various storage temperatures. To determine the antibacterial mechanism of LED illumination at 0.9 kJ/cm(2), oxidative damage to DNA and membrane lipids of Salmonella in phosphate-buffered saline solution was measured. The populations of Salmonella on cut fruits were significantly (P < 0.05) reduced by 0.3-1.3 log CFU/cm(2) at chilling temperatures following LED illumination for 36-48 h (1...
April 2017: Food Microbiology
https://www.readbyqxmd.com/read/27879442/salmonella-enterica-serovar-pomona-infection-in-farmed-juvenile-american-alligators-alligator-mississippiensis
#5
K Sakaguchi, J G Nevarez, F Del Piero
A fatal epizootic of salmonellosis occurred in farmed juvenile American alligators in Louisiana. Six animals were examined. Gross lesions included severe fibrinonecrotizing enterocolitis, necrotizing splenitis, coelomic effusion, and perivisceral and pulmonary edema. Microscopic examination revealed severe necrotizing enterocolitis and splenitis with intralesional bacteria and pneumocyte necrosis with fibrin thrombi. Salmonella enterica serovar Pomona was isolated from intestine and lung. Clinical salmonellosis is a rare finding in reptiles and salmonellosis caused by S...
November 22, 2016: Veterinary Pathology
https://www.readbyqxmd.com/read/27871797/direct-pcr-a-rapid-method-for-multiplexed-detection-of-different-serotypes-of-salmonella-in-enriched-pork-meat-samples
#6
Wai Hoe Chin, Yi Sun, Jonas Høgberg, Than Linh Quyen, Pia Engelsmann, Anders Wolff, Dang Duong Bang
Salmonellosis, an infectious disease caused by Salmonella spp., is one of the most common foodborne diseases. Isolation and identification of Salmonella by conventional bacterial culture method is time consuming. In response to the demand for rapid on line or at site detection of pathogens, in this study, we developed a multiplex Direct PCR method for rapid detection of different Salmonella serotypes directly from pork meat samples without any DNA purification steps. An inhibitor-resistant Phusion Pfu DNA polymerase was used to overcome PCR inhibition...
November 18, 2016: Molecular and Cellular Probes
https://www.readbyqxmd.com/read/27869756/a-review-of-temperature-ph-and-other-factors-that-influence-the-survival-of-salmonella-in-mayonnaise-and-other-raw-egg-products
#7
REVIEW
Thilini Piushani Keerthirathne, Kirstin Ross, Howard Fallowfield, Harriet Whiley
Salmonellosis is one of the main causes of foodborne illnesses worldwide, with outbreaks predominately linked to contamination of eggs and raw egg products, such as mayonnaise. This review explores previous studies that have investigated Salmonella control mechanisms utilized in the production of raw egg mayonnaise and other food products. Apart from the use of pasteurized eggs, the main control mechanism identified is the pH of the raw egg products, which plays an important role in the consistency and stability while affecting the survival of Salmonella spp...
November 18, 2016: Pathogens
https://www.readbyqxmd.com/read/27865096/salmonellosis-in-poland-in-2014
#8
Małgorzata Sadkowska-Todys, Mirosław P Czarkowski
OBJECTIVE: The aim of the study is to assess the epidemiological situation of salmonellosis in Poland in 2014 in comparison to the previous years. MATERIAL AND METHODS: The evaluation was based on the data from the bulletin “Infectious diseases and poisoning in Poland 2014”, information from the laboratories of sanitary-epidemiological stations and reports from the epidemiological investigations in outbreaks of salmonellosis, sent by the sanitary-epidemiological stations to the Department of Epidemiology, as well as the data from the Department of Demographic Studies of the Central Statistical Office...
2016: Przegla̧d Epidemiologiczny
https://www.readbyqxmd.com/read/27837223/quantitative-risk-assessment-of-human-salmonellosis-in-the-smallholder-pig-value-chains-in-urban-of-vietnam
#9
Sinh Dang-Xuan, Hung Nguyen-Viet, Fred Unger, Phuc Pham-Duc, Delia Grace, Ngan Tran-Thi, Max Barot, Ngoc Pham-Thi, Kohei Makita
OBJECTIVES: To quantify salmonellosis risk in humans through consumption of boiled pork in urban Hung Yen Province, Vietnam, using a quantitative microbial risk assessment. METHODS: We collected 302 samples along the pork value chain in Hung Yen between April 2014 and February 2015. We developed a model in @Risk, based on microbiological, market, and household surveys on cooking, cross-contamination and consumption, and conducted sensitivity analysis. RESULTS: Salmonella prevalence of pen floor swabs, slaughterhouse carcasses and cut pork were 33...
November 11, 2016: International Journal of Public Health
https://www.readbyqxmd.com/read/27837117/high-resolution-melting-hrm-analysis-as-a-new-tool-for-rapid-identification-of-salmonella-enterica-serovar-gallinarum-biovars-pullorum-and-gallinarum
#10
Xingxing Ren, Ying Fu, Chenggang Xu, Zhou Feng, Miao Li, Lina Zhang, Jianmin Zhang, Ming Liao
Salmonella enterica serovar Gallinarum biovars Pullorum and Gallinarum represent the most common causative agents of chicken salmonellosis, which result in high mortality and morbidity throughout the world. It is difficult and laborious to discriminate these diseases based on biochemical or phenotypic methods. Herein, we report the development of a single nucleotide polymorphism (SNP) PCR-high resolution melt (PCR-HRM) assay for the detection and discrimination of both S Pullorum and S Gallinarun. The gene rfbS, which encodes a factor involved in the biosynthesis of ADP paratose in serogroup D of Salmonella, has been identified as a robust genetic marker for the identification of S Pullorum and S Gallinarun based on polymorphisms at positions 237 and 598...
November 11, 2016: Poultry Science
https://www.readbyqxmd.com/read/27836967/the-economic-burden-of-a-salmonella-thompson-outbreak-caused-by-smoked-salmon-in-the-netherlands-2012-2013
#11
Anita W M Suijkerbuijk, Martijn Bouwknegt, Marie-Josee J Mangen, G Ardine de Wit, Wilfrid van Pelt, Paul Bijkerk, Ingrid H M Friesema
BACKGROUND: In 2012, the Netherlands experienced the most extensive food-related outbreak of Salmonella ever recorded. It was caused by smoked salmon contaminated with Salmonella Thompson during processing. In total, 1149 cases of salmonellosis were laboratory confirmed and reported to RIVM. Twenty percent of cases was hospitalised and four cases were reported to be fatal. The purpose of this study was to estimate total costs of the Salmonella Thompson outbreak. METHODS: Data from a case-control study were used to estimate the cost-of-illness of reported cases (i...
November 11, 2016: European Journal of Public Health
https://www.readbyqxmd.com/read/27834330/distribution-trends-antibiogram-pattern-of-salmonella-enterica-serovar-newport-in-india
#12
Y Kumar, N Gupta, V B Vaish, S Gupta
BACKGROUND & OBJECTIVES: Salmonellosis is a major public health concern worldwide. Besides typhoidal salmonellae, infections due to non-typhoidal serovars of Salmonella are also associated with high morbidity and mortality leading to huge economic losses. Among non-typhoidal serovars, Salmonella Newport has been reported as a major cause of foodborne infections resulting in outbreaks due to consumption of contaminated food items. Little data related to this serovar are available from India leading to the scarcity of information on the distribution trends of this important serovar in the country...
July 2016: Indian Journal of Medical Research
https://www.readbyqxmd.com/read/27832109/real-time-pathogen-detection-in-the-era-of-whole-genome-sequencing-and-big-data-comparison-of-k-mer-and-site-based-methods-for-inferring-the-genetic-distances-among-tens-of-thousands-of-salmonella-samples
#13
James B Pettengill, Arthur W Pightling, Joseph D Baugher, Hugh Rand, Errol Strain
The adoption of whole-genome sequencing within the public health realm for molecular characterization of bacterial pathogens has been followed by an increased emphasis on real-time detection of emerging outbreaks (e.g., food-borne Salmonellosis). In turn, large databases of whole-genome sequence data are being populated. These databases currently contain tens of thousands of samples and are expected to grow to hundreds of thousands within a few years. For these databases to be of optimal use one must be able to quickly interrogate them to accurately determine the genetic distances among a set of samples...
2016: PloS One
https://www.readbyqxmd.com/read/27828730/characterization-of-resistance-genes-and-plasmids-from-outbreaks-and-illness-clusters-caused-by-salmonella-resistant-to-ceftriaxone-in-the-united-states-2011-2012
#14
Jason P Folster, Julian E Grass, Amelia Bicknese, Julia Taylor, Cindy R Friedman, Jean M Whichard
Salmonella is an important cause of foodborne illness; however, quickly identifying the source of these infections can be difficult, and source identification is a crucial step in preventing additional illnesses. Although most infections are self-limited, invasive salmonellosis may require antimicrobial treatment. Ceftriaxone, an extended-spectrum cephalosporin, is commonly used for treatment of salmonellosis. Previous studies have identified a correlation between the food animal/retail meat source of ceftriaxone-resistant Salmonella and the type of resistance gene and plasmid it carries...
November 9, 2016: Microbial Drug Resistance: MDR: Mechanisms, Epidemiology, and Disease
https://www.readbyqxmd.com/read/27821054/determination-of-virulence-and-antibiotic-resistance-pattern-of-biofilm-producing-listeria-species-isolated-from-retail-raw-milk
#15
Kamelia M Osman, Ahmed Samir, Usama H Abo-Shama, Essam H Mohamed, Ahmed Orabi, Tara Zolnikov
BACKGROUND: One of the foodborne pathogens is Listeria monocytogenes, which causes serious invasive illness in elderly and immunocompromised patients, pregnant women, newborns and infants ranking second after salmonellosis because of its high case fatality rate. Listerial cow mastitis marked by abnormal milk, increased cell counts and reduced production has not been reported. Therefore, apparently healthy cows can be reservoirs of L. monocytogenes. A number of 203 udder milk samples from apparently healthy animals (buffalo, n = 100; cow, n = 103) were collected and tested for Listeria...
November 8, 2016: BMC Microbiology
https://www.readbyqxmd.com/read/27818652/molecular-characterization-of-salmonella-serovars-anatum-and-ealing-associated-with-two-historical-outbreaks-linked-to-contaminated-powdered-infant-formula
#16
Lynda Gunn, Sarah Finn, Daniel Hurley, Li Bai, Ellen Wall, Carol Iversen, John E Threlfall, Séamus Fanning
Powdered infant formula (PIF) is not intended to be produced as a sterile product unless explicitly stated and on occasion may become contaminated during production with pathogens such as Salmonella enterica. This retrospective study focused on two historically reported salmonellosis outbreaks associated with PIF from the United Kingdom and France, in 1985 and 1996/1997. In this paper, the molecular characterization of the two outbreaks associated Salmonella serovars Anatum and Ealing is reported. Initially the isolates were analyzed using pulsed-field gel electrophoresis (PFGE), which revealed the clonal nature of the two outbreaks...
2016: Frontiers in Microbiology
https://www.readbyqxmd.com/read/27809955/live-attenuated-human-salmonella-vaccine-candidates-tracking-the-pathogen-in-natural-infection-and-stimulation-of-host-immunity
#17
James E Galen, Amanda D Buskirk, Sharon M Tennant, Marcela F Pasetti
Salmonellosis, caused by members of the genus Salmonella, is responsible for considerable global morbidity and mortality in both animals and humans. In this review, we will discuss the pathogenesis of Salmonella enterica serovar Typhi and Salmonella enterica serovar Typhimurium, focusing on human Salmonella infections. We will trace the path of Salmonella through the body, including host entry sites, tissues and organs affected, and mechanisms involved in both pathogenesis and stimulation of host immunity. Careful consideration of the natural progression of disease provides an important context in which attenuated live oral vaccines can be rationally designed and developed...
November 2016: EcoSal Plus
https://www.readbyqxmd.com/read/27808343/-detection-of-salmonella-choleraesuis-var-kunzendorf-in-a-fattening-pig-with-septicaemic-salmonellosis-a-case-report
#18
Matthias Eddicks, Regina Hausleitner, Lina Eddicks, Andreas Blutke, Reinhard K Straubinger, Georg Wolf, Istvan Szabo, Christian Heizer, Walter Hermanns, Mathias Ritzmann
The present case reports the detection of Salmonella (S.) Choleraesuis var. Kunzendorf and porcine circovirus type 2 in an organic fattening pig suffering from septicaemic salmonellosis and porcine dermatitis and nephropathy syndrome. Six weeks after pigs had been housed in an organic fattening farm, an increase in mortality, diarrhea and coughing was observed. In recent years, S. choleraesuis var. Kunzendorf has been frequently detected in wild boars in Germany, whereas the same serovar did not play an important role in the Western European domestic pig population...
November 3, 2016: Tierärztliche Praxis. Ausgabe G, Grosstiere/Nutztiere
https://www.readbyqxmd.com/read/27797865/the-enhanced-immune-responses-induced-by-salmonella-enteritidis-ghosts-loaded-with-neisseria-gonorrhoeae-porb-against-salmonella-in-mice
#19
Hongmei Jiao, Hui Yang, Dan Zhao, Li He, Jin Chen, Guocai Li
Humans health has been seriously endangered by highly prevalent salmonellosis and multidrug resistant Salmonella strains. Current vaccines suffer from variable immune-protective effects, so more effective ones are in need to control Salmonella infection : Bacterial ghosts have been produced by the expression of lysis gene E from bacteriophage PhiX174 and can be filled with considerable exogenous substances such as DNA or drugs as a novel platform. In this study, Salmonella enteritidis (SE) ghosts were developed and loaded with Neisseria gonorrhoeae porin B (porB) to construct a novel inactive vaccine...
October 18, 2016: FEMS Microbiology Letters
https://www.readbyqxmd.com/read/27796997/comparing-tio2-photocatalysis-and-uv-c-radiation-for-inactivation-and-mutant-formation-of-salmonella-typhimurium-ta102
#20
Antonino Fiorentino, Luigi Rizzo, Hélène Guilloteau, Xavier Bellanger, Christophe Merlin
Salmonellosis is one of the most common causes of foodborne bacterial human disease worldwide, and the emergence of multidrug-resistant (MDR) strains of Salmonella enterica serovar Typhimurium (S. typhimurium) was associated to the incidence of invasive salmonellosis. The objective of the present work was to investigate the effects of the TiO2 photocatalysis process in terms of both bacteria inactivation and the emergence of mutants, on S. typhimurium TA102 water suspensions. The TiO2 photocatalysis was compared with a conventional disinfection process such as UV-C radiation...
October 31, 2016: Environmental Science and Pollution Research International
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