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Foodborne Pathogens and Disease

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https://read.qxmd.com/read/30779595/salmonella-typhimurium-and-salmonella-enteritidis-infections-in-sporadic-diarrhea-in-children-source-tracing-and-resistance-to-third-generation-cephalosporins-and-ciprofloxacin
#1
Zhougqiu Wei, Xuebin Xu, Meiying Yan, Hailing Chang, Yuefang Li, Biao Kan, Mei Zeng
OBJECTIVES: This study aimed to trace the transmission source of Salmonella enterica serovar Typhimurium and Salmonella enterica serovar Enteritidis strains associated with enteric infections in Shanghainese children, and understand the molecular mechanism of resistance to third-generation cephalosporins and ciprofloxacin. MATERIALS AND METHODS: The profiles of pulsed-field gel electrophoresis (PFGE) were compared among the isolates from children, animal, and environment...
February 19, 2019: Foodborne Pathogens and Disease
https://read.qxmd.com/read/30767657/antimicrobial-resistance-and-virulence-gene-profiles-among-escherichia-coli-isolates-from-retail-chicken-carcasses-in-vietnam
#2
Kathleen Sary, John Morris Fairbrother, Julie Arsenault, Maud de Lagarde, Martine Boulianne
This study evaluated virulence and resistance profiles of Escherichia coli in chicken carcasses from three retail systems in Vietnam. Fresh chicken carcasses from traditional markets and fresh and frozen chicken carcasses from supermarkets were sampled in Vietnam. E. coli isolates from carcass rinses were characterized for extraintestinal pathogenic E. coli (ExPEC) virulence factors (iucD, cnf, papC, tsh, KpsMT II, afa, and sfa) and for phenotypical antimicrobial resistance by Sensititre ARIS® as well as genotypically by polymerase chain reaction...
February 15, 2019: Foodborne Pathogens and Disease
https://read.qxmd.com/read/30741566/experimental-encephalitozoon-cuniculi-infection-acquired-from-fermented-meat-products
#3
Bohumil Sak, Tereza Vecková, Klára Brdíčková, Pavel Smetana, Lenka Hlásková, Marta Kicia, Nikola Holubová, John McEvoy, Martin Kváč
This study describes the prevalence and concentration of Encephalitozoon cuniculi spores in pork meat and evaluates the effect of sausage fermentation on E. cuniculi infectivity for immunodeficient (severe combined immunodeficient) and immunocompetent (BALB/c and C57BL/6) mice. Using a nested polymerase chain reaction (PCR) approach, E. cuniculi genotype II was detected in the meat from 2 out of 50 pig carcasses at slaughter facilities, with 60-250 spores per gram detected by quantitative PCR. Under experimental conditions, 3000 E...
February 11, 2019: Foodborne Pathogens and Disease
https://read.qxmd.com/read/30741557/does-enterococcus-faecalis-from-traditional-raw-milk-cheeses-serve-as-a-reservoir-of-antibiotic-resistance-and-pathogenic-traits
#4
Tiziana Silvetti, Stefano Morandi, Milena Brasca
Enterococcus faecalis is not only a prevalent species among dairy microbial community but also a well-documented opportunistic pathogen. Food safety should exclude the possibility of consumer exposure to its virulence traits through consumption of dairy products. In this study, an integrated approach based on both phenotypic and genotypic methods was applied to investigate the incidence of antibiotic resistance and pathogenicity potential in 40 E. faecalis isolated from 10 Italian raw milk cheeses over a 13-year period (1997-2009)...
February 11, 2019: Foodborne Pathogens and Disease
https://read.qxmd.com/read/30735066/differences-among-incidence-rates-of-invasive-listeriosis-in-the-u-s-foodnet-population-by-age-sex-race-ethnicity-and-pregnancy-status-2008-2016
#5
Aurelie M Pohl, Régis Pouillot, Michael C Bazaco, Beverly J Wolpert, Jessica M Healy, Beau B Bruce, Mark E Laughlin, Jennifer C Hunter, John R Dunn, Sharon Hurd, Jemma V Rowlands, Amy Saupe, Duc J Vugia, Jane M Van Doren
Listeria monocytogenes is a foodborne pathogen that disproportionally affects pregnant females, older adults, and immunocompromised individuals. Using U.S. Foodborne Diseases Active Surveillance Network (FoodNet) surveillance data, we examined listeriosis incidence rates and rate ratios (RRs) by age, sex, race/ethnicity, and pregnancy status across three periods from 2008 to 2016, as recent incidence trends in U.S. subgroups had not been evaluated. The invasive listeriosis annual incidence rate per 100,000 for 2008-2016 was 0...
February 8, 2019: Foodborne Pathogens and Disease
https://read.qxmd.com/read/30715902/diversity-of-extended-spectrum-cephalosporin-resistant-escherichia-coli-in-feces-from-calves-and-cows-on-pennsylvania-dairy-farms
#6
Serajus Salaheen, Huilin Cao, Jakeitha L Sonnier, Seon Woo Kim, Laura P Del Collo, Ernest Hovingh, Jeffrey S Karns, Bradd J Haley, Jo Ann S Van Kessel
The global incidence of human infections associated with extended-spectrum β-lactamase (ESBL)-producing Escherichia coli is increasing. Dairy animals are reservoirs of ESBL-producing E. coli, especially, third-generation cephalosporin (3GC)-resistant strains. To further understand the diversity of 3GC-resistant E. coli across animals of different age groups (e.g., pre- and postweaned calves, lactating cows, and dry cows) and farms, we used pulsed-field gel electrophoresis (PFGE) to characterize 70 fecal isolates from 14 dairy farms located in nine Pennsylvania counties...
February 4, 2019: Foodborne Pathogens and Disease
https://read.qxmd.com/read/30707626/antimicrobial-resistance-profile-of-salmonella-isolates-in-chicken-carcasses-in-dakar-senegal
#7
Ndeye Khota Fall-Niang, Bissoume Sambe-Ba, Abdoulaye Seck, Saidou Nourou Deme, Abdoul Aziz Wane, Raymond Bercion, Rianatou Alambedji-Bada, Amy Gassama-Sow
The incidence of the Salmonella contamination of poultry products in Senegal is unknown. Salmonella contamination and antimicrobial drug resistance profiles in chicken carcasses were investigated. Between July 2012 and July 2013, three types of chicken carcasses (broilers, laying hens, and premises chickens) obtained from retailers in the markets of Dakar and its suburbs were tested for Salmonella contamination. Salmonella strains were isolated from 300 chicken carcasses according to International Organization for Standardization ISO 6579 (2002) guidelines...
February 1, 2019: Foodborne Pathogens and Disease
https://read.qxmd.com/read/30688527/genotypes-and-antimicrobial-susceptibility-profiles-of-hemolytic-escherichia-coli-from-diarrheic-piglets
#8
Fengwei Jiang, Zuowei Wu, Ying Zheng, Timothy S Frana, Orhan Sahin, Qijing Zhang, Ganwu Li
Hemolytic Escherichia coli are important pathogens in neonatal and weaned pigs. In this study, we analyzed 95 hemolytic E. coli isolated from intestinal contents or fecal samples of diarrheic piglets in 15 states of the United States between November 2013 and December 2014. Phenotypic antimicrobial susceptibility was determined through Sensititre BOFO6F plates for all the strains. They were all resistant to clindamycin, penicillin, tiamulin, tilmicosin, and highly resistant to oxytetracycline (91.6%), chlortetracycline (78...
January 28, 2019: Foodborne Pathogens and Disease
https://read.qxmd.com/read/30676777/effects-of-tylosin-administration-routes-on-the-prevalence-of-antimicrobial-resistance-among-fecal-enterococci-of-finishing-swine
#9
Fangzhou Wu, Mike D Tokach, Joel M DeRouchey, Steve S Dritz, Jason C Woodworth, Robert D Goodband, Kessinee Chitakasempornkul, Nora M Bello, Kaylen Capps, Sarah Remfry, Harvey M Scott, Tiruvoor G Nagaraja, Michael D Apley, Raghavendra G Amachawadi
Antibiotics can be administered orally or parenterally in swine production, which may influence antimicrobial resistance (AMR) development in gut bacteria. A total of 40 barrows and 40 gilts were used to determine the effects of tylosin administration route on growth performance and fecal enterococcal AMR. The antibiotic treatments followed Food and Drug Administration label directions and were as follows: (1) no antibiotic (CON), (2) 110 mg tylosin per kg feed for 21 d (IN-FEED), (3) 8.82 mg tylosin per kg body weight through intramuscular injection twice daily for the first 3 d of each week for 3 weeks (IM), and (4) 66 mg tylosin per liter of drinking water (IN-WATER)...
January 24, 2019: Foodborne Pathogens and Disease
https://read.qxmd.com/read/30676080/a-comprehensive-multilocus-sequence-typing-scheme-for-identification-and-genotyping-of-staphylococcus-strains
#10
Minghui Song, Qiongqiong Li, Yiping He, Lefu Lan, Zhen Feng, Yiling Fan, Hao Liu, Feng Qin, Dongying Chen, Meicheng Yang
Increasing clinical significance of coagulase-negative staphylococci requires effective methods for species identification and genotyping. In this study, six housekeeping genes (femA, ftsZ, gap, pyrH, rpoB, and tuf) with extensive allelic polymorphisms were identified and evaluated to develop a comprehensive multilocus sequence typing (MLST) scheme. Selected primers were capable of amplification of the six loci from all of the 180 Staphylococcus strains belonging to 18 different species. Sequence analysis of each locus (44-63 alleles) revealed higher nucleotide diversity than 16S rRNA (28 alleles)...
January 24, 2019: Foodborne Pathogens and Disease
https://read.qxmd.com/read/30657345/prevalence-serotypes-and-antimicrobial-resistance-profiles-among-salmonella-isolated-from-food-catering-workers-in-nantong-china
#11
Haiyan Xu, Wei Zhang, Chen Guo, Haiping Xiong, Xiang Chen, Xinan Jiao, Jing Su, Liting Mao, Zhe Zhao, Qiuchun Li
Salmonella is a worldwide foodborne pathogen causing human disease. Food handlers, who are potential carriers of Salmonella, may transmit the pathogen to consumers through food. To determine the prevalence of Salmonella enterica serovars among food handlers working in the catering industry in Nantong, China, a total of 214,542 food handlers' fecal samples were tested for Salmonella in the Nantong CDC (Centers for Disease Control) from 2012 to 2017. Among those tested, 193 (0.09%) were identified to be positive for Salmonella, and the highest detection rate was 0...
January 18, 2019: Foodborne Pathogens and Disease
https://read.qxmd.com/read/30632791/virulence-potential-biofilm-formation-and-antibiotic-susceptibility-of-listeria-monocytogenes-isolated-from-cattle-housed-in-a-particular-gaushala-cattle-shelter-and-organized-farm
#12
Sunitha Ramanjeneya, Sudam Chandra Sahoo, Richa Pathak, Manesh Kumar, Jess Vergis, Satya Veer Singh Malik, Sukhadeo B Barbuddhe, Deepak B Rawool
OBJECTIVES: The occurrence of Listeria monocytogenes was studied by using cultural and serological methods in cattle housed in a particular gaushala (cattle shelter) and organized dairy farm. MATERIALS AND METHODS: A total of 1201 samples from cattle comprising blood (n = 207), milk (n = 203), vaginal swabs (n = 210), and serum (n = 207) from an organized farm (n = 210) and blood (n = 100), milk (n = 74), vaginal swabs (n = 100), and serum (n = 100) from a gaushala (n = 100) were collected and analyzed for L...
January 11, 2019: Foodborne Pathogens and Disease
https://read.qxmd.com/read/30624967/shiga-toxin-producing-escherichia-coli-in-mastitis-an-international-perspective
#13
Shelton E Murinda, A Mark Ibekwe, Nora G Rodriguez, Karina L Quiroz, Alexander P Mujica, Kayla Osmon
The pathogen profile of Escherichia coli mastitis reveals a complex etiology involving commensal, environmental, and other distinct E. coli pathotypes such as enteropathogenic E. coli and of recent, Shiga toxin-producing E. coli (STEC) have been associated with bovine intramammary infections (IMI). Many researchers have not been testing for STEC and focused on E. coli detection without further subtyping, and as such, the prevalence of STEC in mastitis remains underdiagnosed and underreported. Owing to the dearth of information on STEC involvement in IMI, this review provides an international perspective on the prevalence of STEC in mastitis...
January 9, 2019: Foodborne Pathogens and Disease
https://read.qxmd.com/read/30615488/whole-genome-sequencing-of-salmonella-serovar-stanleyville-from-two-italian-outbreaks-resulted-in-unexpected-genomic-diversity-within-and-between-outbreaks
#14
Veronica Cibin, Marina Busetti, Alessandra Longo, Sara Petrin, Anna Knezevich, Antonia Ricci, Lisa Barco, Carmen Losasso
No abstract text is available yet for this article.
January 7, 2019: Foodborne Pathogens and Disease
https://read.qxmd.com/read/30615484/seasonal-presence-of-salmonella-spp-salmonella-typhimurium-and-its-monophasic-variant-serotype-i-4-5-12-i-in-selected-united-states-swine-feed-mills
#15
Gabriela Magossi, Jianfa Bai, Natalia Cernicchiaro, Cassandra Jones, Elizabeth Porter, Valentina Trinetta
This study evaluated the seasonal prevalence and distribution of Salmonella spp., Salmonella enterica serovar Typhimurium (ST) and its monophasic variant 4,[5],12:i:- (STM), in selected swine feed mills across the United States. Eleven facilities were selected for this study and 12 sites were sampled within each mill during fall 2016, early spring 2017, and summer 2017. Samples were evaluated following the USDA-FSIS guidelines for Salmonella isolation and culture positive samples were analyzed by polymerase chain reaction (PCR)...
January 7, 2019: Foodborne Pathogens and Disease
https://read.qxmd.com/read/30601032/phenotypic-and-genotypic-characterization-of-escherichia-coli-and-salmonella-enterica-from-dairy-cattle-farms-in-the-wakiso-district-uganda-a-cross-sectional-study
#16
Takiyah A Ball, Daniel F Monte, Awa Aidara-Kane, Jorge Matheu-Alvarez, Hongyu Ru, Siddhartha Thakur, Joy Horovitz, Francis Ejobi, David W Lacher, Paula J Fedorka-Cray
Enterobacteriaceae producing β-lactamases have spread rapidly worldwide and pose a serious threat to human-animal-environment interface. In this study, we present the presence of Salmonella enterica (1.3%) and commensal Escherichia coli (96.3%) isolated from 400 environmental fecal dairy cattle samples over 20 farms in Uganda. Among E. coli isolates, 21% were resistant to at least one antimicrobial tested and 7% exhibited multidrug resistance. Four E. coli isolates displayed extended-spectrum beta-lactamase (ESBL)-producing genes, including blaCTX-M-15 (n = 2/4), blaCTX-M-27 (n = 1/4), blaSHV-12 (n = 1/4), and blaTEM-1B (n = 2/4)...
January 2, 2019: Foodborne Pathogens and Disease
https://read.qxmd.com/read/30597121/age-associated-distribution-of-antimicrobial-resistant-salmonella-enterica-and-escherichia-coli-isolated-from-dairy-herds-in-pennsylvania-2013-2015
#17
Huilin Cao, Abani K Pradhan, Jeffrey S Karns, Ernest Hovingh, David R Wolfgang, Bryan T Vinyard, Seon Woo Kim, Serajus Salaheen, Bradd J Haley, Jo Ann S Van Kessel
Antimicrobial resistance has become a major global public health concern, and agricultural operations are often implicated as a source of resistant bacteria. This study characterized the prevalence of antimicrobial-resistant Salmonella enterica and Escherichia coli from a total of 443 manure composite samples from preweaned calves, postweaned calves, dry cows, and lactating cows from 80 dairy operations in Pennsylvania. A total of 1095 S. enterica and 2370 E. coli isolates were screened and tested for resistance to 14 antimicrobials on the National Antimicrobial Resistance Monitoring System Gram-negative (NARMS GN) panel...
December 31, 2018: Foodborne Pathogens and Disease
https://read.qxmd.com/read/30526060/effect-of-low-doses-of-disinfectants-on-the-biofilm-forming-ability-of-listeria-monocytogenes
#18
Cristina Rodríguez-Melcón, Rosa Capita, José Juan Rodríguez-Jerez, Joaquín V Martínez-Suárez, Carlos Alonso-Calleja
This study was intended to investigate the effect of contact with concentrations close to the minimum inhibitory concentration (MIC) (0.5, 1, and 1.5 MIC; MIC of planktonic cells was determined using a microdilution broth method) of sodium hypochlorite (SHY) or benzalkonium chloride (BZK) during the process of formation of biofilm (24 h), upon the architecture and viability of the biofilms formed by four L. monocytogenes isolates of molecular serotype 1/2a: S2-1 (BZK-susceptible strain; MICBZK  = 3.0 ppm), S2-2 (BZK-resistant strain qacH positive; MICBZK  = 13 ppm), CDL 69 (BZK-resistant strain bcrABC positive; MICBZK  = 10 ppm), and S2BAC (BZK-resistant laboratory mutant of S2-1, with multidrug resistance phenotype; MICBZK  = 9 ppm)...
December 11, 2018: Foodborne Pathogens and Disease
https://read.qxmd.com/read/30526054/effects-of-temperature-abuse-on-the-growth-and-staphylococcal-enterotoxin-a-gene-sea-expression-of-staphylococcus-aureus-in-milk
#19
Milijana Babić, Marija Pajić, Miodrag Radinović, Stanko Boboš, Snežana Bulajić, Aleksandra Nikolić, Branko Velebit
The aim of this study was to determine the effects of different temperatures and storage time on Staphylococcus aureus growth, sea gene expression, and synthesis of staphylococcal enterotoxin A (SEA) in the pasteurized and UHT-pasteurized milk. Pasteurized and UHT-pasteurized milk were inoculated with 3.98 log10 CFU/mL of S. aureus (ATCC 13565). Inoculated milk samples were stored at 8°C, 15°C, and 22°C for 24, 48, and 72 h, respectively. SEA synthesis was detected with a fully automated miniVIDAS instrument using the Enzyme-Linked Fluorescent Assay (ELFA) technology...
December 11, 2018: Foodborne Pathogens and Disease
https://read.qxmd.com/read/30511900/estimated-annual-deaths-hospitalizations-and-emergency-department-and-physician-office-visits-from-foodborne-illness-in-ontario
#20
Christopher Drudge, Susan Greco, JinHee Kim, Ray Copes
Public Health Ontario is working to estimate the burden of disease from environmental hazards in Ontario, Canada. As part of this effort, we estimated deaths and health care utilization resulting from exposure to pathogens and toxic substances in food. We applied fractions for the proportion of illness attributable to foodborne transmission to the annual (2008-2012) counts of deaths, hospitalizations, emergency department (ED) visits, and physician office visits for 15 diseases (13 pathogen-specific diseases and 2 nonspecific syndromes) captured by administrative health data...
December 4, 2018: Foodborne Pathogens and Disease
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