| antimicrobial resistance and phage types of salmonella isolates from healthy and diarrheic pigs in korea. | to investigate the serotypes, antimicrobial resistance, and phage types of salmonella spp. isolated from healthy and diarrheic pigs in korea. | 2009 | 19630510 |
| distribution and genotypic characterization of salmonella serovars isolated from tropical seafood of cochin, india. | to determine the distribution of salmonella serovars in seafood and to examine the intraserovar genetic variations in salmonella enterica subsp. enterica serovar rissen and salmonella weltevreden by polymerase chain reaction (pcr)-ribotyping and enterobacterial repetitive intergenic consensus (eric)-pcr methods. | 2009 | 19200318 |
| leakage of emerging clinically relevant multidrug-resistant salmonella clones from pig farms. | objectives to assess the presence of multidrug-resistant (mdr) salmonella with human clinical relevance in pig farms from different regions of portugal and to analyse their mobile genetic elements associated with antibiotic resistance. methods seventy-nine samples were collected from six piggeries and analysed for the presence of salmonella. all isolates were examined for susceptibility to antimicrobial agents and representative isolates for resistance genes and class 1 integrons (pcr/restrictio ... | 2011 | 21697179 |
| analysis of antimicrobial resistance and plasmid profiles in salmonella serovars associated with tropical seafood of india. | a total of 256 salmonella strains consisting of 29 salmonella serovars isolated from seafood of cochin (india) were analyzed for resistance to antimicrobials commonly used in human and veterinary medicines as therapeutic agents. the 10 most predominant salmonella serovars in seafood were also characterized for presence of plasmids using the alkaline lysis method. antimicrobial susceptibility studies highlighted a comparatively high resistance in salmonella isolates to sulfamethizol and carbenici ... | 2009 | 19422307 |
| a cross-sectional study of salmonella in pre-slaughter pigs in a production compartment of northern thailand. | a cross-sectional study was conducted to determine the prevalence of salmonella and to associate management factors in fattening pigs in a production compartment of northern thailand. a total of 194 fecal samples and 166 environmental samples were collected from 22 fattening pig herds for isolation and identification of salmonella. an additional 427 serum samples were collected from the same herds to determine salmonella antibodies using elisa. a questionnaire was used to collect management fact ... | 2009 | 18715662 |
| prevalence, seasonal occurrence, and antimicrobial resistance of salmonella spp. isolates recovered from chicken carcasses sampled at major poultry processing plants of south korea. | the current study was conducted to assess salmonella spp. contamination in chicken carcasses produced at major poultry processing plants in south korea. in total, 120 chicken carcasses were collected through 12 individual trials (10 chickens per trial) from six poultry processing plants in the summer of 2014 and the winter of 2015. eighteen chicken samples (15%) were contaminated with salmonella, with a higher rate of contamination observed during summer (14 isolates, 11.7%) than during winter ( ... | 2016 | 27442349 |
| unveiling contamination sources and dissemination routes of salmonella sp. in pigs at a portuguese slaughterhouse through macrorestriction profiling by pulsed-field gel electrophoresis. | sixty-nine isolates of salmonella sp. isolated from the ileum, tonsils, carcass and mandibular and ileocolic lymph nodes of individual pigs slaughtered for consumption in one abattoir were analyzed using serotyping and macrorestriction profiling by pulsed-field gel electrophoresis (rflp-pfge), in order to identify clonal relationships. xbai macrorestriction was able to distinguish 18 genotypes among the eight identified serotypes: salmonella typhimurium (4 genotypes), salmonella rissen (3), salm ... | 2006 | 16828912 |
| serotype distribution, antimicrobial resistance, and class 1 integrons profiles of salmonella from animals in slaughterhouses in shandong province, china. | the current study aimed to analyze the prevalence and characterization of salmonella enterica isolated from animals in slaughterhouses before slaughter. a total of 143 non-duplicate salmonella were recovered from 1,000 fresh fecal swabs collected from four major pig slaughterhouses (49/600, 8.2%) and four major chicken slaughterhouses (94/400, 23.5%) between march and july 2016. among salmonella isolates from pigs, the predominant serovars were salmonella rissen (28/49, 57.1%) and typhimurium (1 ... | 2017 | 28680418 |
| occurrence of a novel class 1 integron harboring qnrvc4 in salmonella rissen. | we described qnrvc4 in s. rissen 166anss50, a swine isolate, which was detected in the study on quinolone resistance mechanisms of nontyphoidal salmonella in thailand. the isolate was found to harbor a ̴17-kb non-conjugative plasmid carrying qnrvc4 within 8.91kb of a novel in4-like class 1 integron (in805). it contained the multi-drug resistance gene cassettes of qnrvc4-qach4-aaca4-cmla7-blaoxa-10-aada1-dfra14 and unusual 3'-cs of mobc-is6100. this 1014-bp qnrvc4 cassette included with promoter ... | 2017 | 28427794 |
| antimicrobial resistance of salmonella serotypes isolated from slaughter-age pigs and environmental samples. | the aim of this study was to determine the antimicrobial resistance patterns of salmonella strains isolated from slaughter-age pigs and environmental samples collected at modern swine raising facilities in brazil. seventeen isolates of six serotypes of salmonella enterica subsp. enterica were isolated out of 1,026 collected samples: salmonella typhimurium (1), salmonella agona (5), salmonella sandiego (5), salmonella rissen (1), salmonella senftenberg (4), and salmonella javiana (1). resistance ... | 2002 | 12523640 |
| comparative phenotypic and genotypic analyses of salmonella rissen that originated from food animals in thailand and united states. | salmonella enterica serovar rissen has been recognized as one of the most common serovar among humans and pork production systems in different parts of the world, especially asia. in the united states, this serovar caused outbreaks but its epidemiologic significance remains unknown. the objectives of this study were to compare the phenotypic (antimicrobial susceptibility) and genotypic attributes of salmonella rissen isolated in thailand (thai) and the united states (us). all the thai isolates ( ... | 2015 | 24931512 |
| case report of salmonella cross-contamination in a food laboratory. | this paper describes a case of salmonella cross-contamination in a food laboratory. in 2012, chocolate bars shipped from belgium to the usa were prevented from entering the usa because a salmonella rissen strain had been isolated from one of the chocolate bars in a belgian food laboratory. however, a retrospective study of the salmonella isolates sent from the laboratory to the belgian national reference laboratory for salmonella revealed that 7 weeks prior, a salmonella rissen strain has been i ... | 2016 | 26965050 |
| salmonella sp. in game (sus scrofa and oryctolagus cuniculus). | the role of wildlife in the epidemiology of salmonella sp.-induced diseases is a matter of increasing concern to public health. however, to date, reports on the occurrence of salmonella sp. in game hunted for human consumption are very limited. the current study was designed to evaluate the prevalence of salmonella sp. in fecal samples of wild boars and wild rabbits hunted in northern portugal. the results show that 22% of the (17/77) wild boar and 48% (38/80) of the wild rabbit presented salmon ... | 2011 | 21254910 |
| distribution, quantitative load and characterization of salmonella associated with swine farms in upper-northern thailand. | this study was conducted to analyze the prevalence and quantitative loads of salmonella spp. on pig farms in chiang mai, lamphun, thailand to assess loading levels before slaughtering. the serotype diversity, antimicrobial-resistance pattern and pulse-field type of salmonella spp. were also characterized to assess the dynamic propagation of the pathogen. the salmonella-positive prevalence was 246/805 (30.56%), and the quantitative loads varied from 1.48 ˜ 4.04 log10mpn/g, with a mean ± standard ... | 2014 | 24675839 |
| occurrence of extended-spectrum β-lactamases among isolates of salmonella enterica subsp. enterica from food-producing animals and food products, in portugal. | a total of 1120 salmonella spp. isolates, recovered from poultry, swine and food products of animal origin (bovine, swine and poultry) over the period of 2009-2011, were investigated in order to determine their serotype, susceptibility to a panel of eleven antimicrobials (a, ampicillin; ct, cefotaxime; cp, ciprofloxacin; tm, trimethoprim; su, sulfamethoxazole; c, chloramphenicol; s, streptomycin; g, gentamicin; t, tetracycline; na, nalidixic acid; fl, florfenicol), and the presence of resistance ... | 2013 | 24135677 |
| survival of salmonella spp. and fecal indicator bacteria in vietnamese biogas digesters receiving pig slurry. | small-scale biogas digesters are widely promoted worldwide as a sustainable technology to manage livestock manure. in vietnam, pig slurry is commonly applied to biogas digesters for production of gas for electricity and cooking with the effluent being used to fertilize field crops, vegetables and fish ponds. slurry may contain a variety of zoonotic pathogens, e.g. salmonella spp., which are able to cause disease in humans either through direct contact with slurry or by fecal contamination of wat ... | 2014 | 24933419 |
| antimicrobial resistance and molecular epidemiology of salmonella rissen from animals, food products, and patients in thailand and denmark. | recently we reported increases in both the number of salmonella infections due to salmonella rissen in thailand and the isolation of this serovar from pork products in thailand. the objectives of the present study were to determine the genetic diversity and antimicrobial resistance of salmonella rissen isolates recovered from humans, food products, and animals in denmark and thailand. additionally, risk factors due to travel and consumption of specific food products were analyzed and evaluated. ... | 2008 | 18687034 |
| first description of food-borne salmonella enterica resistance regions r1 and r3 associated with is26 elements. | in this study, we assessed the presence of is26 in food-borne assut-type salmonella enterica isolates. a new genetic region (r3) was described, that included a c14 caspase gene between is26 elements. r3 was present in two salmonella rissen isolates from a swine carcass and a meat handler, collected at the same abattoir. furthermore, a new rearrangement of resistance region r1, harboring the blatem-1 gene flanked by is26 elements, was identified in salmonella typhimurium and salmonella 4,[5],12:i ... | 2015 | 25881795 |
| antimicrobial drug resistance and molecular typing of salmonella enterica serovar rissen from different sources. | salmonella enterica serovar rissen is one of the most common serovars found in pigs and pork products in different countries, including spain. however, information on the molecular bases of antimicrobial drug resistance and the population structure of salmonella rissen from different sources in spain is limited. the present study focused on 84 isolates collected in spain from pig and beef carcasses, foods and clinical samples associated with sporadic cases of gastroenteritis, and one outbreak. t ... | 2016 | 26295933 |
| detection of salmonella enterica in pigs at slaughter and comparison with human isolates in italy. | in 2013-2014, 201 pigs belonging to 67 batches were tested for salmonella in their mesenteric lymph nodes (mln) in one abattoir of northern italy. for each batch, faecal material was collected at lairage by swabbing the pen floor for approximately 1600 cm(2). the aim of this study was to investigate the prevalence of salmonella in mln of pigs at slaughter, to assess salmonella contamination at lairage and to evaluate the effect of lairage duration on its prevalence. serotyping, xbai pfge typing ... | 2016 | 26606578 |
| vigilance for salmonella in feedstuffs available in costa rica: prevalence, serotyping and tetracycline resistance of isolates obtained from 2009 to 2014. | relevant epidemiological information is provided in this report for salmonella based on data obtained from a costa rican surveillance program for animal feeds. in addition to prevalence, a description in terms of serotypes and tetracycline (tet) resistance of the isolates is included. a total of 1725 feed and feed ingredients samples were analyzed during 2009 and 2014, from which 110 salmonella strains were recovered (76 from poultry, 23 from meat and bone meal [mbm], 3 from pet foods, and 8 fro ... | 2016 | 26682678 |
| comparative phenotypic and genotypic characterization of temporally related nontyphoidal salmonella isolated from human clinical cases, pigs, and the environment in north carolina. | nontyphoidal salmonella infections caused by antimicrobial-resistant (amr) strains are of great public health concern. we compared the phenotypic and genotypic relationships among temporally and spatially related amr salmonella isolates (n=1058) representing several predominant serovars, including salmonella typhimurium, salmonella typhimurium var. 5-, salmonella derby, salmonella heidelberg, salmonella muenchen, salmonella schwarzengrund, and salmonella rissen of human clinical cases (n=572), p ... | 2014 | 24237109 |
| prevalence and characteristics of salmonella spp. isolated from commercial layer farms in korea. | salmonellosis is one of the most prevalent foodborne illnesses. the outbreak of this disease is often associated with eggs. in this study, the prevalence and characteristics of salmonella was surveyed in layer farms in korea. in addition, the risk factors affecting the prevalence of salmonella in these farms were also assessed. of the 32 farms and 67 flocks examined, 19 farms (59.3%) and 34 flocks (50.7%) were observed to be positive for salmonella contamination. salmonella was detected in the s ... | 2015 | 26015591 |