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Foodborne Pathogens and Disease

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https://www.readbyqxmd.com/read/28537439/phenotypic-and-genotypic-characterization-of-clinical-enterotoxigenic-escherichia-coli-isolates-from-shenzhen-china
#1
Yinghui Li, Qiang Luo, Xiaolu Shi, Yiman Lin, Yaqun Qiu, Dongyue Lv, Yixiang Jiang, Qiongcheng Chen, Min Jiang, Hanwu Ma, Jinquan Cheng, Qinghua Hu
BACKGROUND: Enterotoxigenic Escherichia coli (ETEC) is one of the major causes of infectious diarrhea in developing countries. This study aimed to characterize the prevalence and phenotypic and genotypic features of ETEC isolates from Shenzhen, China. METHODS: ETEC isolates were obtained from acute diarrheal patients and evaluated for enterotoxin, classical colonization factors (CFs), serotypes, antimicrobial susceptibility, and multilocus sequencing typing (MLST)...
May 24, 2017: Foodborne Pathogens and Disease
https://www.readbyqxmd.com/read/28514180/molecular-typing-of-vibrio-parahaemolyticus-strains-isolated-from-mollusks-in-the-north-adriatic-sea
#2
Mohammad Shamsur Rahman, Roberta Carraro, Barbara Cardazzo, Lisa Carraro, Davide Boscolo Meneguolo, Maria Elena Martino, Nadia Andrea Andreani, Paola Bordin, Renzo Mioni, Lisa Barco, Enrico Novelli, Stefania Balzan, Luca Fasolato
BACKGROUND: Vibrio parahaemolyticus is an emerging foodborne pathogen in the Mediterranean, usually associated with shellfish consumption. The increase in the number of outbreaks in Europe is primarily associated with the global warming of the ocean that has a great impact on the spread and genetic selection of waterborne pathogens. The primary role of Italy in Europe's mollusk production, together with the fact that cases of infections with V. parahaemolyticus are not always notified to the European community, highlighted the necessity of acquiring new information about the epidemiological involvement of shellfish products...
May 17, 2017: Foodborne Pathogens and Disease
https://www.readbyqxmd.com/read/28504573/human-norovirus-and-its-surrogates-induce-plant-immune-response-in-arabidopsis-thaliana-and-lactuca-sativa
#3
Sarah M Markland, Harsh Bais, Kalmia E Kniel
Human norovirus is the leading cause of foodborne illness worldwide with the majority of outbreaks linked to fresh produce and leafy greens. It is essential that we thoroughly understand the type of relationship and interactions that take place between plants and human norovirus to better utilize control strategies to reduce transmission of norovirus in the field onto plants harvested for human consumption. In this study the expression of gene markers for the salicylic acid (SA) and jasmonic acid (JA) plant defense pathways was measured and compared in romaine lettuce (Lactuca sativa) and Arabidopsis thaliana Col-0 plants that were inoculated with Murine Norovirus-1, Tulane Virus, human norovirus GII...
May 15, 2017: Foodborne Pathogens and Disease
https://www.readbyqxmd.com/read/28497996/characterization-of-the-salmonella-enterica-serotype-isangi-isolated-from-patients-for-the-first-time-in-china
#4
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/28475359/assessment-of-consumer-exposure-to-salmonella-spp-campylobacter-spp-and-shiga-toxin-producing-escherichia-coli-in-meat-products-at-retail-in-the-city-of-sao-paulo-brazil
#5
Christiane Asturiano Ristori, Ruth Estela Gravato Rowlands, Cecília Geraldes Martins, Maria Luisa Barbosa, Luis Fernando Dos Santos, Miyoko Jakabi, Bernadette Dora Gombossy de Melo Franco
Meat products may be vehicles of bacterial pathogens to humans, and Salmonella spp., Campylobacter spp., and Shiga toxin-producing Escherichia coli (STEC) are the most relevant. The aim of this study was to generate data on prevalence of these three pathogens in 552 samples of meat products (hot dogs, pork sausages, raw ground beef, and raw chicken legs) sold at retail in the city of Sao Paulo, Brazil. Salmonella spp. was detected in 5.8% (32/552) of samples, comprising pork sausages 62.5% (20/32) and chicken legs 37...
May 5, 2017: Foodborne Pathogens and Disease
https://www.readbyqxmd.com/read/28440688/simultaneous-identification-of-campylobacter-jejuni-campylobacter-coli-and-campylobacter-lari-with-smartcycler-based-multiplex-quantitative-polymerase-chain-reaction
#6
Kun C Liu, Karen C Jinneman, Jason Neal-McKinney, Wen-Hsin Wu, Daniel H Rice
BACKGROUND: Consumption of Campylobacter contaminated food or water is a leading cause of human acute gastroenteritis. Campylobacter jejuni, Campylobacter coli, and Campylobacter lari account for over 95% of total Campylobacter infections. A multiplex quantitative polymerase chain reaction (qPCR) for simultaneous identification of C. jejuni, C. coli, and C. lari was developed for use with the SmartCycler II system. MATERIALS AND METHODS: We evaluated and combined previously described primers and probes for Campylobacter detection, designed a new internal amplification control, and optimized the multiplex qPCR for the detection of C...
April 25, 2017: Foodborne Pathogens and Disease
https://www.readbyqxmd.com/read/28418715/evaluation-of-selective-enrichment-and-chromogenic-media-for-salmonella-detection-in-raw-shell-egg-contents-with-a-low-microbial-load
#7
Soo-Kyoung Lee, Kwang-Young Song, Jung-Whan Chon, Dong-Hyeon Kim, Kun-Ho Seo
The current study was conducted to evaluate the ability to recover Salmonella from shell egg contents by culture methods. A total of 4,000 eggs were obtained from a grading and packing center located in the Gyeonggi Province of South Korea, and 200 samples were created by pooling 20 broken eggs. The pooled samples were held at room temperature for 4 d before a 25-mL aliquot of each pool was added to 225 mL of modified trypticase soy broth (mTSB) and incubated at 35°C for 24 ± 2 h. A loopful of the culture was streaked onto chromogenic Druggan-Forsythe-Iversen (DFI) agar and incubated at 36 ± 1°C for 18-24 h...
April 18, 2017: Foodborne Pathogens and Disease
https://www.readbyqxmd.com/read/28402712/investigation-of-a-staphylococcal-food-poisoning-outbreak-from-a-chantilly-cream-dessert-in-umbria-italy
#8
Laura Ercoli, Silvia Gallina, Yacine Nia, Frédéric Auvray, Sara Primavilla, Fabrizia Guidi, Benedetta Pierucci, Catia Graziotti, Lucia Decastelli, Stefania Scuota
On August 28, 2015, a staphylococcal food poisoning outbreak occurred in Umbria, Italy, affecting 24 of the 42 customers who had dinner at a local restaurant. About 3 h after ingesting a variety of foods, the customers manifested gastrointestinal symptoms. Within 24 h of notification from the hospital emergency department, Sanitary Inspectors of the local Public Health Unit performed an epidemiological investigation. A retrospective cohort study was conducted among the customers. Food and environmental samples were collected...
April 12, 2017: Foodborne Pathogens and Disease
https://www.readbyqxmd.com/read/28402677/multiplex-polymerase-chain-reaction-for-identification-of-shigellae-and-four-shigella-species-using-novel-genetic-markers-screened-by-comparative-genomics
#9
Hyun-Joong Kim, Ji-Oh Ryu, Ji-Yeon Song, Hae-Yeong Kim
In the detection of Shigella species using molecular biological methods, previously known genetic markers for Shigella species were not sufficient to discriminate between Shigella species and diarrheagenic Escherichia coli. The purposes of this study were to screen for genetic markers of the Shigella genus and four Shigella species through comparative genomics and develop a multiplex polymerase chain reaction (PCR) for the detection of shigellae and Shigella species. A total of seven genomic DNA sequences from Shigella species were subjected to comparative genomics for the screening of genetic markers of shigellae and each Shigella species...
April 12, 2017: Foodborne Pathogens and Disease
https://www.readbyqxmd.com/read/28387529/toxoplasma-gondii-infection-in-farmed-wild-boars-sus-scrofa-in-three-cities-of-northeast-china
#10
Meng-Jie Bai, Yang Zou, Hany M Elsheikha, Jian-Gang Ma, Wen-Bin Zheng, Quan Zhao, Xiao-Xuan Zhang, Xing-Quan Zhu
The apicomplexan protozoan parasite Toxoplasma gondii is a widely distributed etiological agent of foodborne illness. This parasite can cause production losses in livestock and serious disease in humans through consumption of contaminated meat. Pig meat is the most likely source of human infection, and wild boars may play a role in the transmission of T. gondii by serving as a reservoir host. This study aimed to investigate the seroprevalence of antibodies to T. gondii among farmed wild boars in China. In an 11-month survey, a total of 882 serum samples were obtained from farmed wild boars from three cities (Jilin City, Siping City, and Baishan City) in Jilin province, Northeast China and were tested for antibodies specific for T...
April 7, 2017: Foodborne Pathogens and Disease
https://www.readbyqxmd.com/read/28375673/distribution-and-antimicrobial-susceptibility-of-foodborne-salmonella-serovars-in-eight-provinces-in-china-from-2007-to-2012-except-2009
#11
Yin Wang, Chenyang Cao, Walid Q Alali, Shenghui Cui, Fengqin Li, Jianghui Zhu, Xin Wang, Jianghong Meng, Baowei Yang
One thousand four hundred ninety-one Salmonella isolates recovered from retail foods including chicken, beef, fish, pork, dumplings, and cold dishes in China in 2007, 2008, 2010, 2011, and 2012 were analyzed for distribution of serotype and antimicrobial susceptibility. A total of 129 Salmonella serotypes were detected among 1491 isolates. Salmonella Enteritidis (21.5%), Typhimurium (11.0%), Indiana (10.8%), Thompson (5.4%), Derby (5.1%), Agona (3.8%), and Shubra (3.0%) were the seven most important serotypes in 1491 isolates...
April 4, 2017: Foodborne Pathogens and Disease
https://www.readbyqxmd.com/read/28358583/genetic-relatedness-among-shiga-toxin-producing-escherichia-coli-isolated-along-the-animal-food-supply-chain-and-in-gastroenteritis-cases-in-qatar-using-multilocus-sequence-typing
#12
Srikanth Palanisamy, YuChen Chang, Joy Scaria, Rafael Antonio Casarin Penha Filho, Kenlyn E Peters, Sanjay H Doiphode, Ali Sultan, Hussni O Mohammed
INTRODUCTION: Pathogenic Escherichia coli has been listed among the most important bacteria associated with foodborne illnesses around the world. We investigated the genetic relatedness among Shiga toxin-producing E. coli (STEC) isolated along the animal food supply chain and from humans diagnosed with gastroenteritis in Qatar. METHODS: Samples were collected from different sources along the food supply chain and from patients admitted to the hospital with complaints of gastroenteritis...
March 30, 2017: Foodborne Pathogens and Disease
https://www.readbyqxmd.com/read/28355096/antimicrobial-resistance-profiles-of-listeria-monocytogenes-and-listeria-innocua-isolated-from-ready-to-eat-products-of-animal-origin-in-spain
#13
Cristina Escolar, Diego Gómez, María Del Carmen Rota García, Pilar Conchello, Antonio Herrera
The objective of this work was to investigate the antimicrobial resistance in Listeria spp. isolated from food of animal origin. A total of 50 Listeria strains isolated from meat and dairy products, consisting of 7 Listeria monocytogenes and 43 Listeria innocua strains, were characterized for antimicrobial susceptibility against nine antimicrobials. The strains were screened by real-time PCR for the presence of antimicrobial resistance genes: tet M, tet L, mef A, msr A, erm A, erm B, lnu A, and lnu B. Multidrug resistance was identified in 27 Listeria strains, 4 belonging to L...
March 29, 2017: Foodborne Pathogens and Disease
https://www.readbyqxmd.com/read/28350214/outbreak-of-campylobacteriosis-following-a-dairy-farm-visit-confirmation-by-genotyping
#14
Elina Lahti, Moa Rehn, Gunilla Ockborn, Ingrid Hansson, Joakim Ågren, Eva Olsson Engvall, Cecilia Jernberg
In April-May 2014, an outbreak of campylobacteriosis occurred after a preschool visit to a dairy farm in the South Western part of Sweden. During the visit, a meal, including unpasteurized milk, was served. A retrospective cohort study using a web-based questionnaire was performed among the participants (n = 30) of the farm visit. A total of 24 of the 30 (80%) cohort members completed the questionnaire. Eleven cases were identified, and Campylobacter jejuni was isolated from eight of them. Seven of the cases were 2- to 7-year-old children...
March 28, 2017: Foodborne Pathogens and Disease
https://www.readbyqxmd.com/read/28306338/the-epidemiology-of-childhood-salmonella-infections-in-alberta-canada
#15
Kate E Faulder, Kimberley Simmonds, Joan L Robinson
OBJECTIVES: The objectives were to describe the incidence, demographics, laboratory findings, and suspected sources of childhood Salmonella infections in Alberta, Canada, with a focus on preventable cases. METHODS: Data from Notifiable Disease Reports for children with nontyphoidal salmonellosis (NTS) or typhoid/paratyphoid fever from 2007 through 2015 were analyzed. RESULTS: NTS was detected from 2285 children. Bacteremia was documented in 55 cases (2...
March 17, 2017: Foodborne Pathogens and Disease
https://www.readbyqxmd.com/read/28281781/feedlot-and-pen-level-prevalence-of-enterohemorrhagic-escherichia-coli-in-feces-of-commercial-feedlot-cattle-in-two-major-u-s-cattle-feeding-areas
#16
Charley A Cull, David G Renter, Diana M Dewsbury, Lance W Noll, Pragathi B Shridhar, Samuel E Ives, Tiruvoor G Nagaraja, Natalia Cernicchiaro
The objective of this study was to determine feedlot- and pen-level fecal prevalence of seven enterohemorrhagic Escherichia coli (EHEC) belonging to serogroups (O26, O45, O103, O111, O121, O145, and O157, or EHEC-7) in feces of feedlot cattle in two feeding areas in the United States. Cattle pens from four commercial feedlots in each of the two major U.S. beef cattle areas were sampled. Up to 16 pen-floor fecal samples were collected from each of 4-6 pens per feedlot, monthly, for a total of three visits per feedlot, from June to August, 2014...
March 10, 2017: Foodborne Pathogens and Disease
https://www.readbyqxmd.com/read/28418717/diversity-of-endophytic-bacteria-in-a-fern-species-dryopteris-uniformis-makino-makino-and-evaluation-of-their-antibacterial-potential-against-five-foodborne-pathogenic-bacteria
#17
Gitishree Das, Seonjoo Park, Kwang-Hyun Baek
The fern plant Dryopteris uniformis has traditionally been used in herbal medicine and possesses many biological activities. This study was conducted to explore the endophytic bacterial diversity associated with D. uniformis and evaluate their antibacterial potential against foodborne pathogenic bacteria (FPB). Among 51 isolated endophytic bacteria (EB), 26 EB were selected based on their morphological characteristics and identified by 16S rRNA gene analysis. The distribution of EB was diverse in the leaf and the stem/root tissues...
May 2017: Foodborne Pathogens and Disease
https://www.readbyqxmd.com/read/28414523/presence-of-toxoplasma-gondii-in-drinking-water-from-an-endemic-region-in-southern-mexico
#18
Ivonne B Hernandez-Cortazar, Karla Y Acosta-Viana, Eugenia Guzman-Marin, Antonio Ortega-Pacheco, Jose C Segura-Correa, Matilde Jimenez-Coello
Toxoplasmosis can be acquired through the ingestion of contaminated drinking water with oocysts of Toxoplasma gondii, highly resistant to the routinely disinfection processes; based on chlorination commonly used in the water supply industry. The aim of this study was to determine the presence of T. gondii DNA in samples of public drinking water from an endemic region of southern Mexico. In total 74 samples of water (5 L each) were collected from the three well fields (I, II, and III) and 71 independent wells, distributing public drinking water to the city of Merida Yucatan, after passing through the chlorination process...
May 2017: Foodborne Pathogens and Disease
https://www.readbyqxmd.com/read/28398868/susceptibility-of-salmonella-enterica-isolates-from-tomato-farm-environments-to-fatty-acids-naturally-found-on-tomato-fruit
#19
Govindaraj Dev Kumar, Shirley A Micallef
Salmonella enterica subsp. enterica can colonize tomato fruit as it interacts with fruit surface compounds. The exometabolome of tomato fruit contains a mixture of compounds, including fatty acids, which could affect Salmonella fitness. Fatty acids detected in fruit exudates were investigated for Salmonella inhibition. Pelargonic, lauric, myristic, palmitic, margaric, stearic, and oleic acids were suspended in water dissolved in dimethyl sulfoxide (DMSO) or emulsified in water and quillaja saponin to assess how bioavailability impacted Salmonella growth...
May 2017: Foodborne Pathogens and Disease
https://www.readbyqxmd.com/read/28398867/antimicrobial-efficacy-of-cinnamaldehyde-against-escherichia-coli-o157-h7-and-salmonella-enterica-in-carrot-juice-and-mixed-berry-juice-held-at-4%C3%A2-c-and-12%C3%A2-c
#20
David Manu, Aubrey F Mendonca, Aura Daraba, James S Dickson, Joseph Sebranek, Angela Shaw, Fei Wang, Shecoya White
The effectiveness of cinnamaldehyde for inactivating Salmonella enterica and Escherichia coli O157:H7 in carrot juice (CRJ) and mixed berry juice (MBJ) was investigated. Brain heart infusion broth (BHI), CRJ, and MBJ, with concentrations of added cinnamaldehyde ranging from 0.15 to 1.5 μL/mL, 0.25 to 2.0 μL/mL, and 0.25 to 1.5 μL/mL, respectively, were each inoculated with a 5-strain mixture of Salmonella enterica or Escherichia coli O157:H7 to give an initial viable count of 5.07 log10 colony-forming units/mL...
May 2017: Foodborne Pathogens and Disease
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