keyword
MENU ▼
Read by QxMD icon Read
search

Escherichia Coli O157 infection

keyword
https://www.readbyqxmd.com/read/28077759/complex-responses-to-movement-based-disease-control-when-livestock-trading-helps
#1
Jamie C Prentice, Glenn Marion, Michael R Hutchings, Tom N McNeilly, Louise Matthews
Livestock disease controls are often linked to movements between farms, for example, via quarantine and pre- or post-movement testing. Designing effective controls, therefore, benefits from accurate assessment of herd-to-herd transmission. Household models of human infections make use of R*, the number of groups infected by an initial infected group, which is a metapopulation level analogue of the basic reproduction number R0 that provides a better characterization of disease spread in a metapopulation. However, existing approaches to calculate R* do not account for individual movements between locations which means we lack suitable tools for livestock systems...
January 2017: Journal of the Royal Society, Interface
https://www.readbyqxmd.com/read/28062699/cathelicidin-wa-improves-intestinal-epithelial-barrier-function-and-enhances-host-defense-against-enterohemorrhagic-escherichia-coli-o157-h7-infection
#2
Hongbo Yi, Wangyang Hu, Shan Chen, Zeqing Lu, Yizhen Wang
Impaired epithelial barrier function disrupts immune homeostasis and increases inflammation in intestines, leading to many intestinal diseases. Cathelicidin peptides suppress intestinal inflammation and improve intestinal epithelial barrier function independently of their antimicrobial activity. In this study, we investigated the effects of Cathelicidin-WA (CWA) on intestinal epithelial barrier function, as well as the underlying mechanism, by using enterohemorrhagic Escherichia coli (EHEC)-infected mice and intestinal epithelial cells...
January 6, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28062285/a-review-on-strategies-for-decreasing-e-%C3%A2-coli-o157-h7-risk-in-animals
#3
REVIEW
Pardis Saeedi, Maryam Yazdanparast, Elham Behzadi, Ali Hatef Salmanian, Seyed Latif Mousavi, Shahram Nazarian, Jafar Amani
Enterohemorrhagic Escherichia coli (EHEC) serotype O157:H7 is a food-borne pathogen that younger children are most prone to this microorganism. Hemolytic Uremic Syndrome (HUS) caused by EHEC, leads to the destruction of red blood cells and kidney failure. The virulence of E.coli O157:H7 is attributed to fimbriae, that facilitate colonization of bacteria within the colon and verotoxins (VT) or Shiga toxins (Stx) that are released into the blood. Although, in most cases, the infection is self-limitedin young children and aged population, it may cause HUS...
January 3, 2017: Microbial Pathogenesis
https://www.readbyqxmd.com/read/28056011/escherichia-coli-o157-h7-infections-associated-with-contaminated-pork-products-alberta-canada-july-october-2014
#4
Lance Honish, Nisha Punja, Sarah Nunn, Dale Nelson, Nyall Hislop, Garth Gosselin, Natisha Stashko, Darlene Dittrich
During July-October 2014, an outbreak of 119 Escherichia coli O157:H7 infections in Alberta, Canada was identified through notifiable disease surveillance and investigated by local, provincial, and federal public health and food regulatory agencies. Twenty-three (19%) patients were hospitalized, six of whom developed hemolytic uremic syndrome; no deaths were reported. Informed by case interviews, seven potential food sources were identified and investigated. The majority of patients reported having consumed meals containing pork at Asian-style restaurants in multiple geographically diverse Alberta cities during their exposure period...
January 6, 2017: MMWR. Morbidity and Mortality Weekly Report
https://www.readbyqxmd.com/read/28046078/immune-response-in-calves-vaccinated-with-type-three-secretion-system-antigens-and-shiga-toxin-2b-subunit-of-escherichia-coli-o157-h7
#5
Luisina Martorelli, Sergio Garbaccio, Daniel A Vilte, Adriana A Albanese, María P Mejías, Marina S Palermo, Elsa C Mercado, Cristina E Ibarra, Angel A Cataldi
Ruminants are the primary reservoir of Shiga-toxin producing Escherichia coli (STEC) O157:H7 and the main source of infection for humans. The aim of this study was to assess the immunogenic properties of a candidate vaccine consisting on the recombinant proteins of E. coli O157:H7 IntiminC280, the carboxy-terminal fraction of Intimin γ, EspB and the fusion protein between the B subunit of Stx2 and Brucella Lumazine Synthase (BLS)(BLS-Stx2B), in Holstein Fresian calves.To accomplish this goal we vaccinated calves with two doses of different vaccine formulations: 2 antigens (IntiminC280, EspB), 3 antigens (IntiminC280, EspB, BLS-Stx2B), BLS-Stx2B alone and a control non-vaccinated group...
2017: PloS One
https://www.readbyqxmd.com/read/28045227/severe-outbreak-of-sorbitol-fermenting-escherichia-coli-o157-via-unpasteurized-milk-and-farm-visits-finland-2012
#6
A Jaakkonen, S Salmenlinna, R Rimhanen-Finne, H Lundström, S Heinikainen, M Hakkinen, S Hallanvuo
Shiga toxin-producing, sorbitol-fermenting Escherichia coli O157 (SF O157) has emerged as a cause of severe human illness. Despite frequent human findings, its transmission routes and reservoirs remain largely unknown. Foodborne transmission and reservoir in cattle have been suspected, but with limited supporting evidence. This study describes the outbreak of SF O157 that occurred in Finland in 2012. The outbreak originated from a recreational farm selling unpasteurized milk, as revealed by epidemiologic and microbiological investigations, and involved six hospitalized children and two asymptomatic adults with culture-confirmed infection...
January 3, 2017: Zoonoses and Public Health
https://www.readbyqxmd.com/read/28033314/notes-from-the-field-outbreak-of-escherichia-coli-o157-infections-associated-with-goat-dairy-farm-visits-connecticut-2016
#7
Mark Laughlin, Kelly Gambino-Shirley, Paul Gacek, Quyen Phan, Lauren Stevenson, Alexandra Mercante, Jocelyn Mullins, Laura Burnworth, Anna Blackstock, Jafar H Razeq, Matthew Cartter, Megin Nichols
No abstract text is available yet for this article.
December 30, 2016: MMWR. Morbidity and Mortality Weekly Report
https://www.readbyqxmd.com/read/28003017/potential-immunosuppressive-effects-of-escherichia-coli-o157-h7-experimental-infection-on-the-bovine-host
#8
E Kieckens, J Rybarczyk, R W Li, D Vanrompay, E Cox
BACKGROUND: Enterohaemorrhagic Escherichia coli (EHEC), like E. coli O157:H7 are frequently detected in bovine faecal samples at slaughter. Cattle do not show clinical symptoms upon infection, but for humans the consequences after consuming contaminated beef can be severe. The immune response against EHEC in cattle cannot always clear the infection as persistent colonization and shedding in infected animals over a period of months often occurs. In previous infection trials, we observed a primary immune response after infection which was unable to protect cattle from re-infection...
December 21, 2016: BMC Genomics
https://www.readbyqxmd.com/read/27965652/identification-and-characterization-of-novel-compounds-blocking-shiga-toxin-expression-in-escherichia-coli-o157-h7
#9
Alejandro Huerta-Uribe, Zoe R Marjenberg, Nao Yamaguchi, Stephen Fitzgerald, James P R Connolly, Nuria Carpena, Hanna Uvell, Gillian Douce, Michael Elofsson, Olwyn Byron, Rudi Marquez, David L Gally, Andrew J Roe
Infections caused by Shiga toxin (Stx)-producing E. coli strains constitute a health problem, as they are problematic to treat. Stx production is a key virulence factor associated with the pathogenicity of enterohaemorrhagic E. coli (EHEC) and can result in the development of haemolytic uremic syndrome in infected patients. The genes encoding Stx are located on temperate lysogenic phages integrated into the bacterial chromosome and expression of the toxin is generally coupled to phage induction through the SOS response...
2016: Frontiers in Microbiology
https://www.readbyqxmd.com/read/27956766/enterohemorrhagic-escherichia-coli-o157-in-milk-and-dairy-products-from-libya-isolation-and-molecular-identification-by-partial-sequencing-of-16s-rdna
#10
Aboubaker M Garbaj, Enas M Awad, Salah M Azwai, Said K Abolghait, Hesham T Naas, Ashraf A Moawad, Fatim T Gammoudi, Ilaria Barbieri, Ibrahim M Eldaghayes
AIM: The aim of this work was to isolate and molecularly identify enterohemorrhagic Escherichia coli (EHEC) O157 in milk and dairy products in Libya, in addition; to clear the accuracy of cultural and biochemical identification as compared with molecular identification by partial sequencing of 16S rDNA for the existing isolates. MATERIALS AND METHODS: A total of 108 samples of raw milk (cow, she-camel, and goat) and locally made dairy products (fermented cow's milk, Maasora, Ricotta and ice cream) were collected from some regions (Janzour, Tripoli, Kremiya, Tajoura and Tobruk) in Libya...
November 2016: Veterinary World
https://www.readbyqxmd.com/read/27932635/genome-sequence-of-bacteriophage-gg32-which-can-infect-both-salmonella-enterica-serovar-typhimurium-and-escherichia-coli-o157-h7
#11
Su-Jin Chae, Taesoo Kwon, Sunjin Lee, Yeon Ho Kang, Gyung Tae Chung, Dae-Won Kim, Deog-Yong Lee
We report here a new virulent Salmonella enterica serovar Typhimurium (S Typhimurium) bacteriophage, GG32, which was isolated from the Guem River in the Republic of Korea. The strain can infect both S Typhimurium and Escherichia coli (E. coli) O157:H7 and may be a good candidate for a bio-control agent.
December 8, 2016: Genome Announcements
https://www.readbyqxmd.com/read/27920212/inhibition-of-antigen-specific-and-non-specific-stimulation-of-bovine-t-and-b-cells-by-lymphostatin-from-attaching-and-effacing-escherichia-coli
#12
Robin L Cassady-Cain, Elizabeth A Blackburn, Charlotte R Bell, Elizaveta Elshina, Jayne C Hope, Mark P Stevens
Enterohaemorrhagic E. coli (EHEC) and enteropathogenic E. coli (EPEC) are enteric bacterial pathogens of worldwide importance. Most EPEC and non-O157 EHEC strains express lymphostatin (also known as LifA), a chromosomally-encoded 365 kDa protein. We previously demonstrated that lymphostatin is a putative glycosyltransferase that is important in intestinal colonisation of cattle by EHEC serogroup O5, O111 and O26 strains. However, the nature and consequences of the interaction between lymphostatin and immune cells from the bovine host are ill-defined...
December 5, 2016: Infection and Immunity
https://www.readbyqxmd.com/read/27908998/whole-genome-sequencing-applied-to-the-molecular-epidemiology-of-shiga-toxin-producing-escherichia-coli-o157-h7-in-argentina
#13
Claudia Carolina Carbonari, Nahuel Fittipaldi, Sarah Teatero, Taryn B T Athey, Luis Pianciola, Marcelo Masana, Roberto G Melano, Marta Rivas, Isabel Chinen
Shiga toxin-producing Escherichia coli strains are worldwide associated with sporadic human infections and outbreaks. In this work, we report the availability of high-quality draft whole-genome sequences for 19 O157:H7 strains isolated in Argentina.
December 1, 2016: Genome Announcements
https://www.readbyqxmd.com/read/27854514/subtyping-escherichia-coli-virulence-genes-isolated-from-feces-of-beef-cattle-and-clinical-cases-in-alberta
#14
Renata Tostes, Noriko Goji, Kingsley Amoako, Linda Chui, John Kastelic, Rebekah DeVinney, Kim Stanford, Tim Reuter
Clinical outcomes of Shiga toxin (stx)-producing Escherichia coli infection are largely determined by virulence gene subtypes. This study used a polymerase chain reaction (PCR)-pyrosequencing assay to analyze single-nucleotide polymorphisms for subtyping three major virulence genes (stx1, stx2, eae) of pathogenic E. coli (O157, O26, O111, and O103) isolated from cattle over a 2-year interval (n = 465) and human clinical cases (n = 42) in western Canada. Most bovine isolates were PCR positive for at least one target virulence gene (367/465), whereas 100% of human isolates harbored eae in combination with at least one stx gene...
January 2017: Foodborne Pathogens and Disease
https://www.readbyqxmd.com/read/27853704/molecular-and-phylogenetic-characterization-of-non-o157-shiga-toxin-producing-escherichia-coli-strains-in-china
#15
Xiangning Bai, Bin Hu, Yanmei Xu, Hui Sun, Ailan Zhao, Pengbin Ba, Shanshan Fu, Ruyue Fan, Yujuan Jin, Hong Wang, Qiusheng Guo, Xuebin Xu, Shan Lu, Yanwen Xiong
Shiga toxin-producing Escherichia coli (STEC) causes diarrhea and hemorrhagic colitis with life-threatening complications, such as hemolytic uremic syndrome. The aim of this study was to assess the molecular epidemiologic features of non-O157 STEC strains from different resources in China and illustrate the role of animal reservoirs or animal-derived foodstuffs in human STEC infections. A collection of 301 non-O157 STEC isolates from domestic and wild animals (i.e., cattle, goat, pig, yak, pika, and antelope), raw meats (i...
2016: Frontiers in Cellular and Infection Microbiology
https://www.readbyqxmd.com/read/27770538/rapid-identification-of-the-etiological-factors-causing-diarrheal-diseases
#16
G Kamkamidze, I Migriauli, D Razmadze, M Kochlamazashvili, K Mulkijanyan, M Butsashvili
The main objective of this investigation was to develop and pilot a real-time Polymerase Chain Reaction (rt-PCR) diagnostic system for rapid and simultaneous identification of pathogens with a particular emphasis on diarrheal disease diagnostics. The diarrheal diseases were selected as a target for the pilot because they constitute a primary public health priority in Georgia and worldwide. The product developed by our research team "Neo_PCR_Diagnostics" represents an original system for the identification of pathogens associated with gastrointestinal tract infections and diarrhea...
September 2016: Georgian Medical News
https://www.readbyqxmd.com/read/27713209/virulence-factors-and-stability-of-coliphages-specific-to-escherichia-coli-o157-h7-and-to-various-e-coli-infection
#17
Eun-Jin Kim, Hyun-Joo Chang, Soojin Kwak, Jong-Hyun Park
Characteristics of E. coli O157:H7-specific infection bacteriophages (O157 coliphages) and broad-host-range bacteriophages for other E. coli serotypes (broad-host coliphages) were compared. The burst sizes of the two groups ranged from 40 to 176 PFU/infected cell. Distributions of the virulence factors stx1, stx2, ehxA, and saa between the two groups were not differentiated. Broad-host-range coliphages showed lower stability at 70°C, in relation to O157 coliphages. However, O157 coliphages showed high acid and ethanol tolerance by reduction of only 22% and 11% phages, respectively, under pH 3 and 70% ethanol for 1 h exposure...
December 28, 2016: Journal of Microbiology and Biotechnology
https://www.readbyqxmd.com/read/27678285/antimicrobial-resistance-in-shiga-toxin-producing-escherichia-coli-serogroups-o157-and-o26-isolated-from-human-cases-of-diarrhoeal-disease-in-england-2015
#18
Martin Day, Michel Doumith, Claire Jenkins, Timothy J Dallman, Katie L Hopkins, Richard Elson, Gauri Godbole, Neil Woodford
OBJECTIVES: Shiga toxin-producing Escherichia coli (STEC) are zoonotic and transmission to humans occurs via contaminated food or contact with infected animals. In this study, WGS data were used to predict antimicrobial resistance (AMR) in STEC from symptomatic human cases to assess the extent of transmission of antibiotic-resistant E. coli from animals to humans. METHODS: WGS data from 430 isolates of STEC were mapped to genes known to be associated with phenotypic AMR...
January 2017: Journal of Antimicrobial Chemotherapy
https://www.readbyqxmd.com/read/27672499/characterization-of-novel-bacteriophage-phic119-capable-of-lysing-multidrug-resistant-shiga-toxin-producing-escherichia-coli-o157-h7
#19
Luis Amarillas, Cristóbal Chaidez, Arturo González-Robles, Yadira Lugo-Melchor, Josefina León-Félix
BACKGROUND: Shiga toxin-producing Escherichia coli (STEC) is one of the most common and widely distributed foodborne pathogens that has been frequently implicated in gastrointestinal and urinary tract infections. Moreover, high rates of multiple antibiotic-resistant E. coli strains have been reported worldwide. Due to the emergence of antibiotic-resistant strains, bacteriophages are considered an attractive alternative to biocontrol pathogenic bacteria. Characterization is a preliminary step towards designing a phage for biocontrol...
2016: PeerJ
https://www.readbyqxmd.com/read/27672437/preparation-and-characterization-of-photoactive-antimicrobial-graphitic-carbon-nitride-g-c3n4-films
#20
John H Thurston, Necia M Hunter, Kenneth A Cornell
Photoactive films derived from nanostructured samples of metal-free, intermediate band gap semiconductor graphitic carbon nitride (ns-g-C3N4) have been synthesized and characterized for their particle properties and antimicrobial activity. Physical characterization reveals that these materials are composed of discrete nanoparticles whose dimensions range from 200 nm to 700 nm. Investigation of the photochemical reactivity of ns-g-C3N4 using coumarin-3-carboxylic acid (3-CCA) indicates that this material produces reactive oxygen species (ROS) under visible radiation...
2016: RSC Advances
keyword
keyword
112135
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"