| salmonella serotype distribution in the dutch broiler supply chain. | salmonella serotype distribution can give insight in contamination routes and persistence along a production chain. therefore, it is important to determine not only salmonella prevalence but also to specify the serotypes involved at the different stages of the supply chain. for this purpose, data from a national monitoring program in the netherlands were used to estimate the serotype distribution and to determine whether this distribution differs for the available sampling points in the broiler ... | 2009 | 19903970 |
| serotype identification and antimicrobial resistance profiles of salmonella spp. isolated from chicken carcasses. | in this study, 32 salmonella strains isolated from 400 chicken carcasses were serotyped, and antibiotic resistance profiles were detected against 12 selected antimicrobial agents using disc diffusion method. thirty-two isolates were identified as follows; 22 (68.7%) salmonella enteritidis, five (15.6%) salmonella virchow, three (9.3%) salmonella typhimurium and two (6.2%) salmonella hadar. in all salmonella isolates, antibiotic resistance were detected. out of 32 salmonella strains, 22 (68.75%) ... | 2010 | 19946796 |
| salmonella virchow and salmonella weltevreden in a random survey of the asian house gecko, hemidactylus frenatus, in houses in northern australia. | abstract background: salmonella enterica serotype virchow is the most common cause of invasive nontyphoid salmonellosis in north queensland, particularly in infants, but the zoonotic source is unknown. this study aimed at determining (i) the prevalence of the introduced asian house gecko, hemidactylus frenatus, in houses in north queensland and (ii) whether they were a potential source of salmonella virchow. methods: asian house geckos were collected in a random survey of houses in townsville, n ... | 2010 | 20973656 |
| [epidemiological characteristics of salmonellosis in new zagreb during the 1990-2009 period]. | in croatia, salmonellosis is the leading cause of bacterial foodborne diseases. the aim of the study was to determine the incidence of the disease, patient breakdown by age and sex, the most frequently isolated salmonella serotypes, the length of carriership, and the most frequent source of infection. it was a retrospective analysis, and the sources of data were reports and epidemiological questionnaires administered to those affected with the disease. during the 1990-2009 period, 4492 cases of ... | 2011 | 21568073 |
| comprehensive analysis of salmonella sequence polymorphisms and development of a ldr-ua assay for the detection and characterization of selected serotypes. | salmonella is a major cause of food-borne disease, and salmonella enterica subspecies i includes the most clinically relevant serotypes. salmonella serotype determination is important for the disease etiology assessment and contamination source tracking. this task will be facilitated by the disclosure of salmonella serotype sequence polymorphisms, here annotated in seven genes (sefa, safa, safc, biga, inva, fima, and phsb) from 139 s. enterica strains, of which 109 belonging to 44 serotypes of s ... | 2011 | 21611799 |
| salmonella virchow isolates from human and avian origins in england--molecular characterization and infection of epithelial cells and poultry. | to characterize 12 salmonella virchow isolates from human and avian sources to begin to determine the genetic relationships within the serovar, determine its capacity to invade and induce inflammatory responses in human intestinal epithelial cells and investigate its ability to colonize the chicken gastrointestinal tract. | 2011 | 21920003 |
| salmonella enterica serovar virchow meningitis in a young man in italy: a case report. | salmonella enterica is a leading cause of foodborne infections worldwide and includes more than 2500 different serovars, causing primarily gastroenteritis. however, the infection may occur elsewhere and produce characteristic clinical syndromes. meningitis is a rare complication that occurs in less than 1% of clinical salmonellosis. | 2014 | 24884674 |
| a large outbreak of salmonellosis associated with sandwiches contaminated with multiple bacterial pathogens purchased via an online shopping service. | food sold over the internet is an emerging business that also presents a concern with regard to food safety. a nationwide foodborne disease outbreak associated with sandwiches purchased from an online shop in july 2010 is reported. consumers were telephone interviewed with a structured questionnaire and specimens were collected for etiological examination. a total of 886 consumers were successfully contacted and completed the questionnaires; 36.6% had become ill, with a median incubation period ... | 2014 | 24313786 |
| detection of the plasmid-mediated mcr-1 gene conferring colistin resistance in human and food isolates of salmonella enterica and escherichia coli in england and wales. | in response to the first report of transmissible colistin resistance mediated by the mcr-1 gene in escherichia coli and klebsiella spp. from animals and humans in china, we sought to determine its presence in enterobacteriaceae isolated in the uk. | 2016 | 27090630 |
| prevalence, antimicrobial resistance and relation to indicator and pathogenic microorganisms of salmonella enterica isolated from surface waters within an agricultural landscape. | during a 12 month period (june 2007-may 2008), the prevalence and susceptibility of salmonella serovars and their relation to specific pathogenic and indicator bacteria in river and coastal waters was investigated. a total of 240 water samples were collected from selected sites in acheron and kalamas rivers and the ionian sea coast in north western greece. the samples were analyzed for salmonella spp., listeria spp., campylobacter spp., escherichia coli o157, staphylococci, pseudomonas spp., tot ... | 2013 | 22901425 |
| rapid emergence and clonal dissemination of ctx-m-15-producing salmonella enterica serotype virchow, south korea. | the prevalence of cefotaxime-resistant salmonella enterica serotype virchow has dramatically increased in south korea since the first isolation in 2011. of 68 isolates collected over 10 years, 28 cefotaxime-resistant isolates harbored the bla(ctx-m-15) extended-spectrum β-lactamase gene and were closely related genetically, demonstrating the clonal dissemination of ctx-m-15-producing salmonella virchow in south korea. | 2016 | 26674083 |
| genome analysis and crispr typing of salmonella enterica serovar virchow. | salmonella enterica subsp. enterica serovar virchow has been recognized as a significant health burden in asia, australia and europe. in addition to its global distribution, s. virchow is clinically significant due to the frequency at which it causes invasive infections and its association with outbreaks arising from food-borne transmission. here, we examine the genome of an invasive isolate of s. virchow svq1 (phage type 8) from an outbreak in southeast queensland, australia. in addition to ide ... | 2014 | 24885207 |
| isolation and characterization of salmonella enterica in day-old ducklings in egypt. | importing day-old ducklings (dod) unknowingly infected with non-typhoid salmonella (nts) may be associated with disease risk. domestic and international trade may enhance this risk. salmonella enterica serovars, their virulence genes combinations and antibiotic resistance, garner attention for their potentiality to contribute to the adverse health effects on populations throughout the world. the aim of this study was to estimate the risk of imported versus domestic dod as potential carriers of n ... | 2014 | 24548159 |
| salmonella virchow infection of the chicken elicits cellular and humoral systemic and mucosal responses, but limited protection to homologous or heterologous re-challenge. | salmonella enterica serovar virchow usually causes mild gastroenteritis in humans; however, it is frequently invasive and many isolates are resistant to a broad-range of therapeutic antimicrobials. poultry meat is considered a major source of human infection. in this study, we characterize the infection biology and immune response to s. virchow in chickens and determine protection against homologous and heterologous re-challenge, with s. virchow or s. typhimurium. following oral infection of 7-d ... | 2014 | 26664914 |
| isolation of salmonella virchow from a fruit bat (pteropus giganteus). | detection of zoonotic pathogens carried by bats is important both for understanding disease ecology and for developing preventive measures. pteropus fruit bats have been identified as potential carriers of salmonella enterica serotype typhi. a cross-sectional study was conducted to determine the prevalence of salmonella typhi and other salmonella serotypes in pteropus giganteus fruit bats in bangladesh. rectal swabs were collected from 302 bats and cultured for salmonella species. the bats were ... | 2013 | 24136382 |
| complete nucleotide sequence of pvqs1 containing a quinolone resistance determinant from salmonella enterica serovar virchow associated with foreign travel. | nalidixic acid-resistant salmonella enterica serovars kentucky (n = 5) and virchow (n = 6) cultured from individuals were investigated for the presence of plasmid-mediated quinolone resistance (pmqr) determinants. | 2012 | 22553140 |
| 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 |
| incidence, antimicrobial resistance, and molecular characteristics of nontyphoidal salmonella including extended-spectrum β-lactamase producers in retail chicken meat. | the present study was undertaken to determine the prevalence of salmonella in 100 chicken carcass samples from five integrated broiler operation brands in korea. serotypes, antibiotic resistance patterns, extended-spectrum β-lactamase (esbl) genotype, and clonal divergence using multilocus sequence typing of the isolated strains were analyzed. a total of 42 chicken samples were contaminated with nontyphoidal salmonella (nts) isolates: 16 isolates (38%) were salmonella virchow, 9 (21%) were salmo ... | 2015 | 26555514 |
| modeling and predicting the biofilm formation of salmonella virchow with respect to temperature and ph. | biofilm formation of salmonella virchow was monitored with respect to time at three different temperature (20, 25 and 27.5 °c) and ph (5.2, 5.9 and 6.6) values. as the temperature increased at a constant ph level, biofilm formation decreased while as the ph level increased at a constant temperature, biofilm formation increased. modified gompertz equation with high adjusted determination coefficient (radj(2)) and low mean square error (mse) values produced reasonable fits for the biofilm formatio ... | 2016 | 26960360 |
| splenic abscess complicating gastroenteritis due to salmonella virchow in an immunocompetent host. | | 2015 | 26224189 |