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https://www.readbyqxmd.com/read/29224977/corrigendum-to-molecular-and-phylogenetic-analyses-of-salmonella-gallinarum-trace-the-origin-and-diversification-of-recent-outbreaks-of-fowl-typhoid-in-poultry-farms-vet-microbiol-212-2017-80-86
#1
Silvia De Carli, Tiago Gräf, Diéssy Kipper, Fernanda Kieling Moreira Lehmann, Nathalie Zanetti, Franciele Maboni Siqueira, Samuel Cibulski, André Salvador Kazantzi Fonseca, Nilo Ikuta, Vagner Ricardo Lunge
No abstract text is available yet for this article.
December 7, 2017: Veterinary Microbiology
https://www.readbyqxmd.com/read/29217701/signet-ring-histiocytes-in-typhoid-fever
#2
Jianfeng Zhu, Wei Guo
No abstract text is available yet for this article.
December 7, 2017: Blood
https://www.readbyqxmd.com/read/29205191/investigation-into-a-community-outbreak-of-salmonella-typhi-in-bengaluru-india
#3
Swathi Purighalla, Saritha Esakimuthu, Mallika Reddy, Tara Seth, Sunita D Patil, George K Varghese, Raghunath Dasarathy, Vijay S Richard, Vasan K Sambandamurthy
BACKGROUND & OBJECTIVES: Outbreaks of infection due to Salmonella enterica servovar Typhi (S. Typhi) are a great threat to public health. A rapid molecular typing method to characterize strains implicated in an outbreak is critical in implementing appropriate control measures. This study was done to demonstrate the power of a PCR-based method to provide rapid insights into the genetic relatedness amongst the Salmonella isolates implicated in a suspected typhoid fever outbreak. METHODS: Forty two S...
July 2017: Indian Journal of Medical Research
https://www.readbyqxmd.com/read/29205190/characterization-of-antimicrobial-resistance-markers-their-stability-in-salmonella-enterica-serovar-typhi
#4
Yashwant Kumar, Anshu Sharma, Kavaratty Raju Mani
BACKGROUND & OBJECTIVES: Typhoid fever is a major cause of morbidity and mortality in the developing countries including India. Resistance to multiple antimicrobial agents is an emerging global problem that has serious impact on the treatment of disease. There are many factors associated with the emergence of resistance. Most important of them is the acquisition and further transmission and spread of resistance markers among various bacterial species. Therefore, we conducted this study to characterize the resistance plasmids in terms of their transferability and stability among Salmonella enterica serovar Typhi...
July 2017: Indian Journal of Medical Research
https://www.readbyqxmd.com/read/29203881/in-vivo-tropism-of-salmonella-typhi-toxin-to-cells-expressing-a-multiantennal-glycan-receptor
#5
Yi-An Yang, Sohyoung Lee, Jun Zhao, Andrew J Thompson, Ryan McBride, Buyankhishig Tsogtbaatar, James C Paulson, Ruth Nussinov, Lingquan Deng, Jeongmin Song
Typhoid fever is a life-threatening disease, but little is known about the molecular bases for its unique clinical presentation. Typhoid toxin, a unique virulence factor of Salmonella Typhi (the cause of typhoid fever), recapitulates in an animal model many symptoms of typhoid fever. Typhoid toxin binding to its glycan receptor Neu5Ac is central, but, due to the ubiquity of Neu5Ac, how typhoid toxin causes specific symptoms remains elusive. Here we show that typhoid toxin displays in vivo tropism to cells expressing multiantennal glycoprotein receptors, particularly on endothelial cells of arterioles in the brain and immune cells, which is in line with typhoid symptoms...
December 4, 2017: Nature Microbiology
https://www.readbyqxmd.com/read/29201803/massive-lower-gastrointestinal-bleed-caused-by-typhoid-ulcer-conservative-management
#6
Apoorv Goel, Roli Bansal
Typhoid fever is caused by gram-negative organism Salmonella typhi. The usual presentation is high-grade fever, but complications like gastrointestinal (GI) hemorrhage and perforation are also seen frequently. With the advent of antibiotics, these complications are rarely seen now. We present a case of a young female who was admitted with a diagnosis of typhoid fever presented with a massive GI bleed from ulcers in the terminal ileum and was managed conservatively without endotherapy and surgery. How to cite this article: Goel A, Bansal R...
July 2017: Euroasian Journal of Hepato-Gastroenterology
https://www.readbyqxmd.com/read/29201148/whole-genome-sequencing-based-detection-of-antimicrobial-resistance-and-virulence-in-non-typhoidal-salmonella-enterica-isolated-from-wildlife
#7
Milton Thomas, Gavin John Fenske, Linto Antony, Sudeep Ghimire, Ronald Welsh, Akhilesh Ramachandran, Joy Scaria
The aim of this study was to generate a reference set of Salmonella enterica genomes isolated from wildlife from the United States and to determine the antimicrobial resistance and virulence gene profile of the isolates from the genome sequence data. We sequenced the whole genomes of 103 Salmonella isolates sampled between 1988 and 2003 from wildlife and exotic pet cases that were submitted to the Oklahoma Animal Disease Diagnostic Laboratory, Stillwater, Oklahoma. Among 103 isolates, 50.48% were from wild birds, 0...
2017: Gut Pathogens
https://www.readbyqxmd.com/read/29198370/whole-genome-sequencing-analysis-of-salmonella-enterica-serovar-weltevreden-isolated-from-human-stool-and-contaminated-food-samples-collected-from-the-southern-coastal-area-of-china
#8
Baisheng Li, Xingfen Yang, Hailing Tan, Bixia Ke, Dongmei He, Haiyan Wang, Qiuxia Chen, Changwen Ke, Yonghui Zhang
Salmonella enterica serovar Weltevreden is the most common non-typhoid Salmonella found in South and Southeast Asia. It causes zoonoses worldwide through the consumption of contaminated foods and seafood, and is considered as an important food-borne pathogen in China, especially in the Southern coastal area. We compared the whole genomes of 44 S. Weltevreden strains isolated from human stool and contaminated food samples from Southern Coastal China, in order to investigate their phylogenetic relationships and establish their genetic relatedness to known international strains...
October 31, 2017: International Journal of Food Microbiology
https://www.readbyqxmd.com/read/29193894/phenotypic-and-genotypic-comparison-of-salmonellae-from-diarrhoeic-and-healthy-humans-and-cattle-nigeria
#9
K Fashae, P Leekitcharoenphon, R S Hendriksen
The sources and modes of transmission of non-typhoidal Salmonella particularly zoonotic transmission are poorly understood in Africa. This study compared phenotypic and genotypic characteristics of Salmonellae isolated from cattle and humans. Faecal samples of diarrhoeic patients (n = 234), and a healthy population (n = 160), beef cattle at slaughter (n = 250), farms (n = 72) and market (n = 100) were cultured for salmonellae and serotyping and antimicrobial susceptibility were determined. Whole-genome sequence typing (WGST) of selected isolates and bioinformatic analysis were used to identify the multilocus sequence type (MLST), plasmid replicons, antimicrobial resistance genes and genetic relatedness by single nucleotide polymorphism (SNP) analysis...
November 28, 2017: Zoonoses and Public Health
https://www.readbyqxmd.com/read/29191238/ethnopharmacological-studies-of-indigenous-plants-in-kel-village-neelum-valley-azad-kashmir-pakistan
#10
Khawaja Shafique Ahmad, Abdul Hamid, Fahim Nawaz, Mansoor Hameed, Farooq Ahmad, Jiabin Deng, Noreen Akhtar, Ambreen Wazarat, Sehrish Mahroof
BACKGROUND: This explorative study was undertaken for the first time in Kel village located in the Upper Neelum Valley, Azad Kashmir, Pakistan. The purpose was to document the indigenous knowledge of the native people used in the preparation of herbal medicines. METHODS: To get the data on traditional uses of medicinal plants, 20 informants were interviewed. Quantitative ethnobotanical indices, i.e., use value (UV), relative frequencies of citation (RFC), informant consensus factor (Fic), fidelity level (FL), data matrix ranking (DMR), preference ranking (PR), and jaccard index (JI), were calculated for the recorded medicinal plants...
December 1, 2017: Journal of Ethnobiology and Ethnomedicine
https://www.readbyqxmd.com/read/29187834/characterization-of-four-novel-bacteriophages-isolated-from-british-columbia-for-control-of-non-typhoidal-salmonella-in-vitro-and-on-sprouting-alfalfa-seeds
#11
Karen Fong, Brett LaBossiere, Andrea I M Switt, Pascal Delaquis, Lawrence Goodridge, Roger C Levesque, Michelle D Danyluk, Siyun Wang
Alfalfa sprouts have been linked to numerous North American outbreaks of Salmonella in recent years. Conventionally, treatments involving chlorine, heat, and irradiation are used for alfalfa seed sanitation. However, such treatments may be highly variable in their efficacy for pathogen control and/or detrimental to sprout quality, therefore negatively perceived by consumers advocating for natural alternatives. The usage of bacteriophages for pathogen control in sprouts has been previously explored, although with conflicting and inconsistent results...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/29187195/prevalence-antimicrobial-susceptibility-and-risk-factors-associated-with-non-typhoidal-salmonella-on-ugandan-layer-hen-farms
#12
Terence Odoch, Yngvild Wasteson, Trine L'Abée-Lund, Adrian Muwonge, Clovice Kankya, Luke Nyakarahuka, Sarah Tegule, Eystein Skjerve
BACKGROUND: Non-typhoidal Salmonella (NTS) are among the leading global foodborne pathogens and a significant public health threat. Their occurrence in animal reservoirs and their susceptibilities to commonly used antimicrobials are poorly understood in developing countries. The aim of this study was to estimate the prevalence, determine antimicrobial susceptibility and identify risk factors associated with NTS presence in laying hen farms in Uganda through a cross-sectional study. RESULTS: Pooled faecal samples were collected from 237 laying hen farms and these were analysed for NTS following standard laboratory procedures...
November 29, 2017: BMC Veterinary Research
https://www.readbyqxmd.com/read/29184606/knowledge-attitude-and-practice-of-hygiene-and-sanitation-in-a-burundian-refugee-camp-implications-for-control-of-a-salmonella-typhi-outbreak
#13
Marie-Rosette Nahimana, Candide Tran Ngoc, Olushayo Olu, Jose Nyamusore, Ayodeji Isiaka, Vedaste Ndahindwa, Lakruwan Dassanayake, André Rusanganwa
Introduction: A Salmonella typhi outbreak was reported in a Burundian refugee camp in Rwanda in October 2015. Transmission persisted despite increased hygiene promotion activities and hand-washing facilities instituted to prevent and control the outbreak. A knowledge, attitude and practice (KAP) study was carried out to assess the effectiveness of ongoing typhoid fever preventive interventions. Methods: A cross-sectional survey was conducted in Mahama Refugee Camp of Kirehe District, Rwanda from January to February 2016...
2017: Pan African Medical Journal
https://www.readbyqxmd.com/read/29180525/increasing-antimicrobial-resistance-in-non-typhoidal-salmonella-in-australia-1979-2015
#14
Deborah A Williamson, Courtney R Lane, Marion Easton, Mary Valcanis, Janet Strachan, Mark G Veitch, Martyn D Kirk, Benjamin P Howden
Australia has high and increasing rates of salmonellosis. To date, the serovar distribution and associated antimicrobial resistance (AMR) patterns of non-typhoidal Salmonella enterica (NTS) in Australia have not been assessed. Such information provides critical knowledge about AMR in the food chain, and informs decisions about public health. We reviewed longitudinal data on NTS in two Australian states over a thirty-seven-year period, between 1979 and 2015, and antimicrobial resistance since 1984. Overall, 17% of isolates were non-susceptible to at least one antimicrobial, 4...
November 27, 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/29180411/correction-for-alvarez-et-al-human-genetic-variation-in-vac14-regulates-salmonella-invasion-and-typhoid-fever-through-modulation-of-cholesterol
#15
(no author information available yet)
No abstract text is available yet for this article.
November 27, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29180409/correction-to-supporting-information-for-alvarez-et-al-human-genetic-variation-in-vac14-regulates-salmonella-invasion-and-typhoid-fever-through-modulation-of-cholesterol
#16
(no author information available yet)
No abstract text is available yet for this article.
November 27, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29180370/quantifying-the-survival-of-multiple-salmonella-enterica-serovars-in-vivo-using-massively-parallel-whole-genome-sequencing-to-predict-zoonotic-risk
#17
Prerna Vohra, Marie Bugarel, Frances Turner, Guy H Loneragan, Jayne C Hope, John Hopkins, Mark P Stevens
Salmonella enterica is an animal and zoonotic pathogen of worldwide importance. Serovars exist that differ in their host and tissue tropism. Cattle are an important reservoir of human non-typhoidal salmonellosis and contaminated bovine peripheral lymph nodes enter the food chain via ground beef. The relative ability of different serovars to survive within the bovine lymphatic system is poorly understood and constrains the development of control strategies. This problem was addressed by developing a massively-parallel whole genome sequencing method to study mixed-serovar infections in vivoSalmonella serovars differ genetically by naturally occurring single nucleotide polymorphisms (SNPs) in certain genes...
November 27, 2017: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/29173593/molecular-and-phylogenetic-analyses-of-salmonella-gallinarum-trace-the-origin-and-diversification-of-recent-outbreaks-of-fowl-typhoid-in-poultry-farms
#18
Silvia De Carli, Tiago Gräf, Diéssy Kipper, Fernanda Kieling Moreira Lehmann, Nathalie Zanetti, Franciele Maboni Siqueira, Samuel Cibulski, André Salvador Kazantzi Fonseca, Nilo Ikuta, Vagner Ricardo Lunge
Fowl typhoid (FT) and pullorum disease (PD) are two important poultry infections caused by Salmonella enterica subsp. enterica serotype Gallinarum (S. Gallinarum). S. Gallinarum strains are adapted to birds and classified into biovars Gallinarum (bvGA) and Pullorum (bvPU) as they are the causative agent of FT and PD, respectively. In Brazil, FT/PD outbreaks have been reported along the last 50 years, but there was a recent increase of FT field reports with the suspicion it could be due to virulence reversion of the attenuated live vaccine SG9R...
December 2017: Veterinary Microbiology
https://www.readbyqxmd.com/read/29168450/estimates-of-the-burden-of-illness-for-eight-enteric-pathogens-associated-with-animal-contact-in-canada
#19
R Murray, J Tataryn, K Pintar, M K Thomas
Enteric pathogens are commonly known to be transmitted through food or water; however, contact with animals is another important transmission route. This study estimated the annual burden of illness attributable to animal contact for eight enteric pathogens in Canada. Using data from a Canadian expert elicitation on transmission routes, the proportion of enteric illnesses attributable to animal contact was estimated for each pathogen to estimate the annual number of illnesses, hospitalizations and deaths in Canada...
November 23, 2017: Epidemiology and Infection
https://www.readbyqxmd.com/read/29163440/nutrient-composition-promotes-switching-between-pellicle-and-bottom-biofilm-in-salmonella
#20
Sonia Paytubi, Cintia Cansado, Cristina Madrid, Carlos Balsalobre
Salmonella is one of the most frequently reported causes of foodborne illness worldwide. Non-typhoidal serovars cause gastroenteritis in humans. Salmonella can grow on surfaces forming biofilms, contributing to its persistence since biofilms are difficult to eradicate due to the high resistance to antimicrobials and disinfectants. It has been described that there are two crucial biofilm promoting factors in Salmonella: curli and cellulose. The expression of both factors is coordinately regulated by the transcriptional regulator CsgD...
2017: Frontiers in Microbiology
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