keyword
MENU ▼
Read by QxMD icon Read
search

Food pathogen

keyword
https://www.readbyqxmd.com/read/29035493/medical-devices-immunology-and-microbiology-devices-classification-of-the-nucleic-acid-based-device-for-the-amplification-detection-and-identification-of-microbial-pathogens-directly-from-whole-blood-specimens-final-order
#1
(no author information available yet)
The Food and Drug Administration (FDA or we) is classifying the nucleic acid-based device for the amplification, detection, and identification of microbial pathogens directly from whole blood specimens into class II (special controls). The special controls that apply to the device type are identified in this order and will be part of the codified language for the nucleic acid-based device for the amplification, detection, and identification of microbial pathogens directly from whole blood specimens' classification...
October 16, 2017: Federal Register
https://www.readbyqxmd.com/read/29035192/bacillus-cereus-bacteremia-with-central-nervous-system-involvement-a-neuropathological-study
#2
Jean Philippe Brouland, Nathalie Sala, Selin Tusgul, Caterina Rebecchini, Enikö Kovari
Bacillus cereus is a widely-distributed, gram-positive or variable, rod-shaped bacterium frequently considered a contaminant in clinical specimens. It is recognized as a potential pathogen inducing self-limiting emetic or diarrheal food poisoning or localized infection in immunocompetent patients. True B. cereus bacteremia is uncommon and mainly observed in fragile patients, notably in immunocompromised individuals. We report clinical, radiological, and pathological findings of a 64-year-old patient with a history of acute myeloid leukemia who initially presented a fever while neutropenic after the induction of a second cycle of chemotherapy...
October 16, 2017: Clinical Neuropathology
https://www.readbyqxmd.com/read/29034201/evaluation-of-zanthoxylum-armatum-roxb-for-in%C3%A2-vitro-biological-activities
#3
Fiaz Alam, Qazi Najam Us Saqib
Zanthoxylum armatum fruits are used traditionally as a spice in various food preparations. The aim of this study was analysis of antimicrobial, cytotoxic, phytotoxic, insecticidal, and anti-leishmanial activity. The crude extract showed 86 ± 10% antifungal activity (Agar tube dilution method) against Trichophyton longifusis while n-hexane, chloroform, and aqueous-methanol fractions inhibited this pathogen by 90 ± 7, 85 ± 10 and 70 ± 9% respectively. The n-hexane and aqueous-methanol fraction also, respectively, showed 40 ± 10 and 87 ± 9% inhibition of Microsporum canis...
October 2017: Journal of Traditional and Complementary Medicine
https://www.readbyqxmd.com/read/29034091/phenotypic-and-genotypic-characterization-of-antibiotic-resistance-of-methicillin-resistant-staphylococcus-aureus-isolated-from-hospital-food
#4
Farhad Safarpoor Dehkordi, Hasan Gandomi, Afshin Akhondzadeh Basti, Ali Misaghi, Ebrahim Rahimi
BACKGROUND: Pathogenic biotypes of the Methicillin-resistant Staphylococcus aureus (MRSA) strains are considered to be one of the major cause of food-borne diseases in hospitals. The present investigation was done to study the pattern of antibiotic resistance and prevalence of antibiotic resistance genes of different biotypes of the MRSA strains isolated from various types of hospital food samples. METHODS: Four-hundred and eighty-five raw and cooked hospital food samples were cultured and MRSA strains were identified using the oxacillin and cefoxitin disk diffusion tests and mecA-based PCR amplification...
2017: Antimicrobial Resistance and Infection Control
https://www.readbyqxmd.com/read/29033925/caco-2-invasion-by-cronobacter-sakazakii-and-salmonella-enterica-exposed-to-drying-and-heat-treatments-in-dried-state-in-milk-powder
#5
Emilie Lang, Stéphane Guyot, Pablo Alvarez-Martin, Jean-Marie Perrier-Cornet, Patrick Gervais
Due to the ability of foodborne pathogens to survive in low moisture food, the decontamination of milk powder is an important issue in food protection. The safety of food products is, however, not always insured and the different steps in the processing of food involve physiological and metabolic changes in bacteria. Among these changes, virulence properties may also be affected. In this study, the effect of drying and successive thermal treatments on the invasion capacity of Salmonella Typhimurium, Salmonella Senftenberg, and Cronobacter sakazakii was assessed...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/29033901/monte-carlo-simulations-suggest-current-chlortetracycline-drug-residue-based-withdrawal-periods-would-not-control-antimicrobial-resistance-dissemination-from-feedlot-to-slaughterhouse
#6
Casey L Cazer, Lucas Ducrot, Victoriya V Volkova, Yrjö T Gröhn
Antimicrobial use in beef cattle can increase antimicrobial resistance prevalence in their enteric bacteria, including potential pathogens such as Escherichia coli. These bacteria can contaminate animal products at slaughterhouses and cause food-borne illness, which can be difficult to treat if it is due to antimicrobial resistant bacteria. One potential intervention to reduce the dissemination of resistant bacteria from feedlot to consumer is to impose a withdrawal period after antimicrobial use, similar to the current withdrawal period designed to prevent drug residues in edible animal meat...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/29032838/next-generation-of-microbiological-risk-assessment-potential-of-omics-data-for-exposure-assessment
#7
Heidy M W den Besten, Alejandro Amézquita, Sara Bover-Cid, Stéphane Dagnas, Mariem Ellouze, Sandrine Guillou, George Nychas, Cian O'Mahony, Fernando Pérez-Rodriguez, Jeanne-Marie Membré
In food safety and public health risk evaluations, microbiological exposure assessment plays a central role as it provides an estimation of both the likelihood and the level of the microbial hazard in a specified consumer portion of food and takes microbial behaviour into account. While until now mostly phenotypic data have been used in exposure assessment, mechanistic cellular information, obtained using omics techniques, will enable the fine tuning of exposure assessments to move towards the next generation of microbiological risk assessment...
October 4, 2017: International Journal of Food Microbiology
https://www.readbyqxmd.com/read/29032651/complete-genome-sequence-of-salmonella-enterica-subsp-enterica-serovar-typhimurium-st1120-isolated-from-swine-feces-in-korea
#8
Seongok Kim, Eunsuk Kim, Soyeon Park, Tae-Wook Hahn, Hyunjin Yoon
Salmonella enterica subsp. enterica serovar Typhimurium, one of the most common food-borne pathogens, is transmitted mainly through contaminated food derived from infected animals. In this study, S. Typhimurium ST1120, an isolate from pig feces in Korea, was subjected to whole genome analysis to understand its genomic features associated with virulence. The genome of ST1120 was found to have a circular chromosome of 4,855,001 bp (GC content 52.2%) and a plasmid of 6,863 bp (GC content 46.0%). This chromosome was predicted to have 4,558 open reading frames (ORFs), 17 pseudogenes, 22 rRNA genes, and 86 tRNA genes...
October 14, 2017: Journal of Microbiology and Biotechnology
https://www.readbyqxmd.com/read/29031605/a-waterborne-outbreak-of-multiple-diarrhoeagenic-escherichia-coli-infections-associated-with-drinking-water-at-a-school-camp
#9
Jungsun Park, Jin Seok Kim, Soojin Kim, Eunkyung Shin, Kyung-Hwan Oh, Yonghoon Kim, Cheon Hyeon Kim, Min Ah Hwang, Chan Mun Jin, Kyoungin Na, Jin Lee, Enhi Cho, Byung-Hak Kang, Hyo-Sun Kwak, Won Keun Seong, Junyoung Kim
BACKGROUND: In June 2015, a local public health laboratory was notified that students had developed gastroenteritis symptoms after participating in a camp. An outbreak investigation was conducted to determine the extent and cause of the outbreak. METHOD: We conducted a retrospective cohort study to determine the correlations between the illness and specific exposures at the school camp. All attendees were interviewed with a standard questionnaire that addressed clinical symptoms, food consumption and environmental exposures...
October 11, 2017: International Journal of Infectious Diseases: IJID
https://www.readbyqxmd.com/read/29030671/graphene-based-label-free-electrochemical-aptasensor-for-rapid-and-sensitive-detection-of-foodborne-pathogen
#10
Shalini Muniandy, Ignatius Julian Dinshaw, Swe Jyan Teh, Chin Wei Lai, Fatimah Ibrahim, Kwai Lin Thong, Bey Fen Leo
Reduced graphene oxide (rGO) has emerged as a promising nanomaterial for reliable detection of pathogenic bacteria due to its exceptional properties such as ultrahigh electron transfer ability, large surface to volume ratio, biocompatibility, and its unique interactions with DNA bases of the aptamer. In this study, rGO-azophloxine (AP) nanocomposite aptasensor was developed for a sensitive, rapid, and robust detection of foodborne pathogens. Besides providing an excellent conductive and soluble rGO nanocomposite, the AP dye also acts as an electroactive indicator for redox reactions...
October 13, 2017: Analytical and Bioanalytical Chemistry
https://www.readbyqxmd.com/read/29030448/prevalence-and-antimicrobial-resistance-of-enterococci-isolated-from-retail-meats-in-the-united-states-2002-2014
#11
Gregory H Tyson, Epiphanie Nyirabahizi, Emily Crarey, Claudine Kabera, Claudia Lam, Crystal Rice-Trujillo, Patrick F McDermott, Heather Tate
Bacteria of the genus Enterococcus are important human pathogens that are frequently resistant to a number of clinically important antibiotics. They are also used as a marker of animal fecal contamination of human foods, and are employed as sentinel organisms for tracking trends in resistance to antimicrobials with gram-positive activity. As part of the National Antimicrobial Resistance Monitoring System (NARMS), we evaluated several retail meat commodities for the presence of enterococci from 2002-2014, finding 92...
October 13, 2017: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/29030437/formation-of-staphylococcus-aureus-biofilm-in-the-presence-of-sub-lethal-concentrations-of-disinfectants-a-transcriptomic-analysis-using-rna-seq
#12
M Slany, J Oppelt, L Cincarova
Staphylococcus aureus is a common biofilm-forming pathogen. Low doses of disinfectants have previously been reported to promote biofilm formation and to increase virulence. The aim of this study was to use RNA-seq analysis to investigate global transcriptional changes in S. aureus in response to sub-lethal concentrations of commonly used food industry disinfectants (ethanol, Et; chloramine T, ChT; and their combination, Et_ChT), in order to better understand the effects of these agents on biofilm formation...
October 13, 2017: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/29030192/polyvinyl-alcohol-sodium-alginate-integrated-silver-nanoparticles-as-probable-solution-for-decontamination-of-microbes-contaminated-water
#13
M A Abu-Saied, Tarek H Taha, Nehal M El-Deeb, Elsayed E Hafez
It is well known that the pathogenic multidrug resistant microbes are highly distributed and transferred to human through contaminated food and water. Advanced technologies have been developed for controlling these microbes using synthesized nanoparticles. In this study, bio-synthesized silver nanoparticles were prepared, characterized and integrated with two synthetic and natural polymers. The polymers-silver nanoparticles were characterized using SEM, FTIR and mechanical properties of the membrane synthesized from either polymers with/without nanosilver...
October 10, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/29029726/loeffler-4-0-diagnostic-metagenomics
#14
Dirk Höper, Claudia Wylezich, Martin Beer
A new world of possibilities for "virus discovery" was opened up with high-throughput sequencing becoming available in the last decade. While scientifically metagenomic analysis was established before the start of the era of high-throughput sequencing, the availability of the first second-generation sequencers was the kick-off for diagnosticians to use sequencing for the detection of novel pathogens. Today, diagnostic metagenomics is becoming the standard procedure for the detection and genetic characterization of new viruses or novel virus variants...
2017: Advances in Virus Research
https://www.readbyqxmd.com/read/29029084/penicillin-binding-protein-encoded-by-pbp4-is-involved-in-mediating-copper-stress-in-listeria-monocytogenes
#15
Cameron Parsons, Ben Costolo, Phillip Brown, Sophia Kathariou
Listeria monocytogenes raises major food safety and public health concerns due its potential for severe foodborne disease and persistent colonization of food processing facilities. Copper is often employed to control pathogens in agriculture and is increasingly used in healthcare facilities, but mechanisms mediating tolerance of L. monocytogenes to copper remain poorly understood. A mariner-based mutant library of L. monocytogenes 2011L-2858, implicated in the 2011 listeriosis outbreak via whole cantaloupe, was screened for growth at sublethal levels of copper yielding mutant G2B4 with decreased copper tolerance...
October 4, 2017: FEMS Microbiology Letters
https://www.readbyqxmd.com/read/29029003/rearing-xyleborus-volvulus-coleoptera-curculionidae-on-media-containing-sawdust-from-avocado-or-silkbay-with-or-without-raffaelea-lauricola-ophiostomatales-ophiostomataceae
#16
Octavio Menocal, Luisa F Cruz, Paul E Kendra, Jonathan H Crane, Randy C Ploetz, Daniel Carrillo
Like other ambrosia beetles, Xyleborus volvulus Fabricius (Coleoptera: Curculionidae) lives in a mutualistic symbiotic relationship with fungi that serve as food source. Until recently, X. volvulus was not considered a pest, and none of its symbionts were considered plant pathogens. However, recent reports of an association between X. volvulus and Raffaelea lauricola T.C. Harr., Fraedrich & Aghayeva (Ophiostomatales: Ophiostomataceae), the cause of the laurel wilt disease of avocado (Persea americana Mill. [Laurales: Lauraceae]), and its potential role as vector of the pathogen merit further investigation...
October 9, 2017: Environmental Entomology
https://www.readbyqxmd.com/read/29028568/virulence-genotypes-and-antimicrobial-susceptibility-patterns-of-arcobacter-butzleri-isolated-from-seafood-and-its-environment
#17
Srinu Rathlavath, Vandita Kohli, Asem Sanjit Singh, Manjusha Lekshmi, Gayatri Tripathi, Sanath Kumar, Binaya Bhusan Nayak
Arcobacter butzleri is an emerging pathogen isolated from animals, food and the environment. In this study, 147 A. butzleri isolated from seafood and the coastal environment were tested for the presence of ten putative virulence genes (cadF, cj1349, ciaB, mviN, pldA, tlyA, hecA, hecB, irgA, iroE) and antimicrobial susceptibilities. Majority of the isolates harbored mviN (100%), cj1349 (97.2%), ciaB (95.9%), tlyA (91.8%), pldA (91.1%) and cadF (89.7%). Lower detection rates were observed for hecA (10.8%), hecB (19%), iroE (12...
October 3, 2017: International Journal of Food Microbiology
https://www.readbyqxmd.com/read/29028435/evaluation-of-agricultural-interventions-on-human-and-poultry-related-salmonella-enteritidis-in-british-columbia
#18
Marsha Taylor, William Cox, Michael Otterstatter, Nancy de With, Eleni Galanis
A collaborative investigation between public health and animal health led to numerous interventions along the food chain in response to an outbreak of human salmonellosis and increased incidence of Salmonella Enteritidis (SE) among poultry. Incidence of both human and chicken SE decreased substantially in 2012 and 2013 following these interventions. We used time series analysis to assess the impact of three interventions: vaccination of broiler breeder flocks, separation in the hatchery of breeder eggs, and an industry order to stop farm-gate sales of ungraded broiler hatching eggs...
October 13, 2017: Foodborne Pathogens and Disease
https://www.readbyqxmd.com/read/29027375/vibrio-vulnificus-new-insights-into-a-deadly-opportunistic-pathogen
#19
Craig Baker-Austin, James D Oliver
Vibrio vulnificus is a Gram-negative aquatic bacterium first isolated by the United States (US) Centers for Disease Control and Prevention (CDC) in 1964. This bacterium is part of the normal microbiota of estuarine waters and occurs in high numbers in molluscan shellfish around the world, particularly in warmer months. Infections in humans are derived from consumption of seafood produce and from water exposure. V. vulnificus is a striking and enigmatic human pathogen, yet many aspects related to its biology, genomics, virulence capabilities and epidemiology remain elusive and poorly understood...
October 13, 2017: Environmental Microbiology
https://www.readbyqxmd.com/read/29027118/genetic-variation-of-pln-loci-among-probiotic-lactobacillus-plantarum-group-strains-with-antioxidant-and-cholesterol-lowering-ability
#20
Sundru Manjulata Devi, Prakash M Halami
In the present study, 14 different plantaricin-encoding genes of pln loci were studied and compared to available sequences from public domain database of probiotic Lactobacillus plantarum strains. Based upon the presence and absence of selected genes, pln locus was grouped into eight clusters. Further, quantitative real-time PCR (qRT-PCR) analysis for seven genes has discriminated the complex pln locus into five types which includes WCFS1 (in Lactobacillus plantarum subsp. plantarum MCC 2976 and MCC 2974 and Lactobacillus paraplantarum MCC 2978), closely related to J51 (in Lb...
October 13, 2017: Probiotics and Antimicrobial Proteins
keyword
keyword
56886
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"