| partial characterization of salmonella weltevreden enterotoxin. | | 1979 | 521070 |
| enterotoxigenicity of salmonella weltevreden cell lysates. | | 1979 | 535946 |
| bacteriophage typing of salmonella weltevreden. | salmonella weltevreden has been found to be one of the commonest salmonella serotypes isolated from diverse sources in india and has also been isolated in a number of other countries. a phage typing scheme was developed for this serotype using a set of six typing phages. these phages had been selected out of 146 phage strains isolated and purified from stool samples of man, laboratory animals and other animals, sewage and surface water sources, and the lytic mutants of temperate phages form s. w ... | 1979 | 552816 |
| phage-typing of salmonella weltevreden based on lysogeny. i. the phage-typing system. | all of the 1070 strains of salmonella weltevreden tested were lysogenic, temperate phage being demonstrable in 83.9% of the strains in broth culture, 6.4% in mixed culture and the remaining 9.7% after induction by uv-irradiation and mc treatment. a phage-typing scheme for salmonella weltevreden based on the host range of temperate phages was developed. the strains could be classified into eight groups by means of the host range of their temperate phages on six indicator strains and a ninth group ... | 1977 | 603231 |
| phage-typing of salmonella weltevreden based on lysogeny. ii. epidemiological usefulness of the system and geographical distribution of its phage-types. | nine hundred and forty-six strains of salmonella weltevreden isolated in different states of india during 1958-1974 and 124 strains from australia, burma, holland, hong kong, new zealand, papua new guinea, the philippines, thailand, the united states and vietnam during 1953-1971 were phage-typed according to the phage-typing scheme described in the first part of this paper (sood and basu, 1977). the epidemiological incidence and geographical distribution of phage-types of salmonella weltevreden ... | 1977 | 603232 |
| enterotoxic activity of salmonella weltevreden culture filtrates. | | 1978 | 680847 |
| outbreak of gastroenteritis due to salmonella weltevreden in a hospital. | | 1976 | 1010618 |
| isolation of salmonella weltevreden from a case of continuous fever. | | 1976 | 1010655 |
| salmonella weltevreden: a sero-type of increasing public health importance in india. | infection due to salmonalla weltevreden in man in india was quite uncommon until 1970, constituting less than 4% of total human salmonellosis. the incidence of infection increase considerably since that year and in 1972 this serotype constituted 29.1% of total human and 22.4% of both human and and animal salmonellosis. this serotype ranks second among 47 and 83 salmonella serotypes isolated from sewage and other water sources during 1958-1973. the public health importance of this serotypes is di ... | 1975 | 1216319 |
| tissue changes induced by enterotoxic preparations of salmonella weltevreden in ligated rabbit gut segments. | culture filtrates and cell lysates of two strains of s. weltevreden which caused dilation of ligated rabbit gut segments (characteristic associated with the enterotoxic activity) induced mild to severe architectural changes in the test segments of intestine. the dilated segments contained thick, bloody and mucoid exudates. the results suggested that besides invasiveness and enterotoxigenicity, s. weltevreden possibly possessed factor (s) that damaged intestinal tissue and played part in the path ... | 1992 | 1459642 |
| a delayed permeability factor in the culture filtrates and cell lysates of salmonella weltevreden. | salmonella weltevreden strains produced a delayed permeability factor (pf) when tested on depilated rabbit skin. the pf activity could be demonstrated in freshly concentrated culture filtrates as well as in the cell lysates. the activity varied with strain and preparation. the induration and blueing reactions were associated with well marked balancing zones. | 1992 | 1483713 |
| outbreak of keratoconjunctivitis due to salmonella weltevreden in a guinea pig colony. | the purpose of this report is to demonstrate that the ability to produce keratoconjunctivitis (kc) is a property found in salmonella weltevreden. this observation is contrary to previous reports that salmonella spp. do not produce kc. an outbreak of kc due to s. weltevreden occurred in a guinea pig colony, and the animals carried the organism in the intestinal tract. the same salmonella serotype that caused an epidemic of diarrhea in humans and a routine laboratory isolate also possessed the abi ... | 1991 | 1774327 |
| nontyphoidal salmonella enteric infections and bacteremia. | antimicrobial treatment of nontyphoidal salmonella gastroenteritis is usually advocated for infants younger than 3 months of age based on published data showing that infants in this age group are more prone to have bacteremia and develop extraintestinal focal infections. a review of nontyphoidal salmonella isolates from our institution from january, 1981, through march, 1988, was undertaken to assess the role of age and specific serovar on the incidence of bacteremia. two hundred twenty isolates ... | 1989 | 2664692 |
| wall geckos (geckonidae) as reservoirs of salmonellae in nigeria: problems for epidemiology and public health. | an investigation was carried out to establish the occurrence of salmonellae in household wall lizards (gecko gecko and hemidactylus sp.) in nsukka, nigeria. twentyseven out of 90 geckos examined yielded positive salmonella isolations, giving a carrier-rate of 30 per cent. while 2 isolates were non-typable, the other 25 strains belonged to 6 serotypes: salmonella weltevreden (8 strains), salmonella typhimurium, salmonella enteritidis, salmonella hvittingfos, salmonella saintpaul, and salmonella a ... | 1985 | 3833829 |
| an outbreak of food poisoning in a family due to salmonella weltevreden at delhi. | | 1985 | 3837042 |
| lytic action of the salmonella weltevreden typing phages in relation to s-r dissociation of s. weltevreden. | | 1985 | 3988325 |
| typing of salmonella weltevreden strains by means of lysis patterns of symbiotic phages. | | 1973 | 4570840 |
| a phage typing scheme for salmonella weltevreden. | | 1971 | 5169842 |
| salmonella weltevreden--a serotype of possible zoonotic significance in india. | | 1971 | 5170485 |
| plaque morphology and antigenic relationship of the salmonella weltevreden typing phages. | the plaque morphology and antigenic relationship of the six typing phages of salmonella weltevreden were studied. under identical conditions of plating, the phages could be classified into three groups based on plaque morphology. neutralization tests with anti-phage sera showed that typing phages phi i and phi ii were antigenically similar. phages phi iii, phi iv and phi vi also showed antigenic similarity. typing phage phi v was antigenically distinct from all other phages. thus the phages coul ... | 1983 | 6651290 |
| production, partial purification and characterization of salmonella heat-labile enterotoxin. | a heat-labile enterotoxin possessing both diarrheogenic and skin permeability reactions has been isolated from salmonella weltevreden. the enterotoxin was mainly located intracellularly in the cell wall fraction. by chemical and physical techniques such as edta treatment of cell walls, fractional ammonium sulphate precipitation and continuous sucrose gradient centrifugation of cell sap (cell free extract) and gel filtration chromatography of culture supernatant, the enterotoxin has been partiall ... | 1983 | 6686400 |
| biological characteristics of salmonella weltevreden typing phages. | the important biological characteristics of salmonella weltevreden (3, 10 : r :z6) typing phages were studied. on the basis of these, the phages could be classified into three groups: phages phi i and phi ii, phages phi iii, phi iv and phi vi, and phage phi v. | 1984 | 6714856 |
| kinetics of heat inactivation of the salmonella weltevreden typing phages. | | 1984 | 6746049 |
| inhibitory effect of indomethacin on skin permeability reactions mediated by heat-labile enterotoxins of salmonella weltevreden, escherichia coli and vibrio cholerae. | indomethacin, a rapid and intense inhibitor of prostaglandin synthesis, was used with a view to find out similarity in secretory mechanism of heat-labile enterotoxins of three diarrhoea producing enteric bacteria viz., salmonella weltevreden, escherichia coli and vibrio cholerae in rabbits. a significant inhibition (90% to 94%) of biological activity of indomethacin pretreated salmonella enterotoxin was evident in indomethacin treated rabbits, whereas the biological activity was found comparativ ... | 1982 | 6750983 |
| host specificity of salmonella weltevreden typing phages. | the host range of the six s. weltevreden typing phages was studied on 1469 strains belonging to 37 different salmonella serotypes. in addition to s. weltevreden, only s. nchanga, s. give, s. lexington and s. anatum, all belonging to o group e, showed varying degrees of susceptibility to the action of some of the typing phages. typing phage vi lysed only one strain other than s. weltevreden. all serotypes tested other than s. weltevreden were resistant to phages iii and iv even at 1000 times the ... | 1982 | 7092204 |
| sub-classification of phage types of salmonella weltevreden and typing of strains by an extended phage typing scheme. | by the use of two adapted phage preparations of typing phage ii the s. weltevreden phage types 4 and 5 could be classified into two sub-types each and phage types 9 and 10 into three sub-types each. the 1094 strains of s. weltevreden could be classified into a total of sixteen phage types including the sub-types. the host range mutants of typing phage ii were distinct from the parent strain. after adaptation to two insensitive strains, one of the new preparations, phi iia lost its affinity to so ... | 1980 | 7235688 |
| geographical distribution and epidemiological incidence of phage-types of salmonella weltevreden in india during 1958-1974. | phage-typing of salmonella weltevreden was carried out with a set of 6 typing phages and the geographical distribution of 946 strains isolated during 1958-1974 studied. phage-type 5 was the most predominant type and types 2 and 7 were found exclusively in india. strains isolated from epidemics and epizootics were studied to assess the epidemiological significance and utility of the scheme based on the set of six typing phages. phage-types from various sources in different geographical regions we ... | 1981 | 7287278 |
| the sero-fermentative-phage types of salmonella weltevreden. | a biotyping scheme has been described which is based on the biochemical behaviour of s. weltevreden strains towards 5 substrates (sorbitol, dextrin, malonate, rhamnose, starch). the 228 s. weltevreden strains examined were grouped into 25 of the 32 theoretical biotypes. frequently occurring biotypes were: biotype 10 (16.2%), biotype 5 (13.4%) and biotype 11 (11.4%). no substantial correlation could be established between biotypes and source or geographic distribution of s. weltevreden. sero-ferm ... | 1980 | 7434993 |
| [a fatal case of acute enteritis caused by salmonella weltevreden after travel to indonesia]. | a 67-year-old male was admitted to our hospital because of watery diarrhea and pre-shock status at 10:30 am on march 20, 1995. he had travelled to bali island in indonesia from march 13 to march 18, 1995. on admission, his systolic blood pressure was 60 mmhg and body temperature was 35.2 degrees c. his skin was very dry. laboratory tests showed that s-cr was 6.3 mg/dl and cpk was 5620 iu/l. a massive fluid transfusion was given immediately and then his blood pressure rose to 158/92 about two hou ... | 1996 | 8621967 |
| a simple, rapid and sensitive detection of salmonella in food by polymerase chain reaction. | a polymerase chain reaction (pcr) method was developed for detection of salmonella in food. a set of pcr primers was designed to amplify a 199 bp salmonella-specific dna fragment derived from a repetitive dna of salmonella weltevreden. the assay detected all 52 most prevalent serovars found in contaminated food in thailand and no cross-reaction was observed with other non-salmonella organisms. the limit of detection was 1 fg of purified target dna or five bacteria from pure culture. the detectio ... | 1995 | 8808307 |
| distinctive is200 insertion between gyra and rcsc genes in salmonella typhi. | while probing the vicinity of ompc, a copy of the is200 insertion element was found between the gyra and rcsc genes of salmonella typhi, the causal agent of typhoid fever. this distinctive feature was conserved throughout 63 s. typhi isolates of different geographical origins and was absent from 46 other salmonella serotypes, including those most associated with human infections, as well as from 19 other enteric bacteria. furthermore, the location of this is200 copy corresponds to a constant ban ... | 1997 | 9399492 |
| a shipyard outbreak of salmonellosis traced to contaminated fruits and vegetables. | a large outbreak of food poisoning occurred in september 1996 and involved at least 116 workers at a shipyard in jurong. salmonella weltevreden was isolated from the stool specimens of 24 hospitalised cases and three food handlers, giving a total of 27 bacteriologically confirmed cases (25 symptomatic and two asymptomatic) in this outbreak. based on a case-control analysis, a number of food items consumed on 23 and 24 september 1996 were implicated in the outbreak, viz. a vegetable dish (p < 0.0 ... | 1997 | 9494655 |
| heat resistance of salmonella weltevreden in low-moisture environments. | the heat resistance of salmonella weltevreden inoculated into flour and heated in hot air was determined for (a) an initial water activity (aw) range of 0.20 to 0.60 prior to heating, (b) a range of storage relative humidities of 6.0 to 35.5% prior to heating, and (c) temperatures of 57 to 77 degrees c. the death curves obtained were biphasic, demonstrating an initial rapid decline in the numbers of survivors (1.0- to 1.5-log reductions) during the first 5 to 10 min of heating for all the temper ... | 1998 | 9713756 |
| isolation and characterisation of four distinct cytotoxic factors of salmonella weltevreden. | four distinct cytotoxins with different biological, physico-chemical and antigenic characteristics were isolated from a single salmonella weltevreden strain recovered from buffalo meat. the toxins were purified by means of salt precipitation, dialysis, gel filtration and ion-exchange chromatographic methods. cytotoxin i was dermonecrotic, verocytotoxic and lethal for the mouse (ld50 120 micrograms). it induced accumulation of serosanguinous fluid in the rabbit ligated ileal loop (rlil) and mucin ... | 1999 | 10603663 |
| incidence of salmonella in fish and seafood. | field laboratories of the u.s. food and drug administration collected and tested 11,312 import and 768 domestic seafood samples over a 9-year period (1990 to 1998) for the presence of salmonella. the overall incidence of salmonella was 7.2% for import and 1.3% for domestic seafood. nearly 10% of import and 2.8% of domestic raw seafood were positive for salmonella. the overall incidence of salmonella in ready-to-eat seafood and shellfish eaten raw was 0.47% for domestic--one shucked oyster and on ... | 2000 | 10826714 |
| molecular characterization of salmonella weltevreden isolated from poultry: evidence of conjugal transfer of plasmid and antibiotic resistance. | ten strains of salmonella weltevreden isolated from poultry sources were examined and found to contain plasmid dna ranging in size from 1.8 to 68.5 md. all isolates were susceptible to carbenicillin, cephalothin, ceftriazone, gentamicin, kanamycin and nalidixic acid, but resistance to bacitracin (100%), penicillin g (100%), rifampicin (100%), sulphamethoxazole (100%), cefuroxime (80%) and tetracycline (60%) was recorded. the 55 md plasmid of strain sw5 determined resistance to penicillin g and t ... | 2001 | 11229656 |
| biofilm formation by salmonella spp. on food contact surfaces and their sensitivity to sanitizers. | biofilm formation by two poultry isolates of salmonella on three commonly used food contact surfaces viz plastic, cement and stainless steel were studied. biofilm formation of both the isolates showed a similar trend with the highest density being on plastic followed by cement and steel. salmonella weltevreden formed biofilm with a cell density of 3.4 x 10(7), 1.57 x 10(6) and 3 x 10(5) cfu/cm2 on plastic, cement and steel respectively while salmonella fcm 40 biofilm on plastic, cement and steel ... | 2001 | 11294359 |
| application of ribosomal rna gene restriction patterns analysis and pulsed-field gel electrophoresis in distinguishing salmonella weltevreden isolates in malaysia. | a representative sample of 20 isolates of salmonella weltevreden strains from stool cultures of patients admitted at the university hospital, kuala lumpur, malaysia were analyzed. all the strains were susceptible to ampicillin, ceftriaxone, ciprofloxacin, chloramphenicol, tetracycline, trimethoprim, gentamicin and co-trimoxazole. ribosomal rna gene restriction pattern analysis of psti-digested dna gave three ribotypes while pulsed-field gel electrophoresis (pfge) analysis of xbai-digested dna ga ... | 2000 | 11414415 |
| enteric fever due to salmonella weltevreden in a four-year-old child. | a four-year old child was admitted with signs and symptoms suggestive of enteric fever. blood culture and serial stool cultures were undertaken. weltevreden, a rare salmonella serotype was isolated from the stool samples. the isolate was sensitive to ampicillin, cefotaxime, gentamicin, chloramphenicol and ciprofloxacin. | 2002 | 12649949 |
| antimicrobial susceptibility and occurrence of resistance genes among salmonella enterica serovar weltevreden from different countries. | this study was conducted to investigate the occurrence of antimicrobial resistance among salmonella weltevreden isolates from different sources in south-east asia (indonesia, laos, malaysia, taiwan, thailand, vietnam), australia, denmark, new zealand and the usa. | 2003 | 12972453 |
| contamination of salmonella in retail meats and shrimps in the mekong delta, vietnam. | from march 2000 to september 2001, 608 samples of retail meat (136 pork, 70 beef, 202 chicken, and 200 ducks) and 110 samples of retail shrimp from six provinces of the mekong delta in vietnam were collected individually and examined for the prevalence of salmonella. of the 718 samples examined, 243 (33.8%) were salmonella positive. salmonella was isolated from 69.9% of the pork samples, 48.6% of the beef samples, 21.0% of the chicken meat samples, 22.3% of the duck meat samples, and 24.5% of th ... | 2005 | 15895745 |
| characterization of antimicrobial-resistant salmonella isolated from imported foods. | two-hundred eight salmonella isolates recovered from over 5,000 imported foods entering the united states in 2001 were tested for antimicrobial susceptibilities and further characterized for quinolone resistance mechanisms, integron carriage, and genetic relatedness. salmonella weltevreden (20%), salmonella newport (6%), salmonella lexington (5%), and salmonella thompson (4%) were the four most common serotypes recovered. twenty-three (11%) isolates were resistant to at least one antimicrobial, ... | 2006 | 16541678 |
| partial purification and cytotoxic effects of salmonella proteinous moieties on chick embryo fibroblasts. | salmonella enterica serovars, viz., s. weltevreden, s. typhimurium, s. gallinarum and s. bareilly were treated with cephotaxime to release of intracellular proteins. the cephotaxime extract (ce) was salt precipitated with ammonium sulphate (45-70%) and dialyzed, and denoted as precipitated dialyzed proteins (pdp). further, both ce and pdp of salmonella weltevreden and pdp of rest of the serovars were subjected to gel filtration using sephacryl s-200hr. different fractions along with ce and pdp w ... | 2006 | 16924838 |
| detection and characterization of salmonella associated with tropical seafood. | the prevalence of salmonella in seafood samples collected from the southwest coast of india was studied by conventional culture and by a dna based molecular technique, polymerase chain reaction (pcr). while conventional culture techniques detected salmonella in only 20 out of the 100 samples analyzed, direct enrichment lysate pcr detected 52 as positive for salmonella. a set of three different pcr primers viz., hns, inva and inve were used. it was observed that hns primer detected salmonella in ... | 2007 | 17141346 |
| prevalence and characterization of salmonella enterica serovar weltevreden from imported seafood. | during 2001-2005, 210 salmonella enterica strains were isolated from seafood samples imported into us. strains of s. enterica serovar weltevreden were the most predominantly found among the 64 different serovars isolated. a total of 37 salmonella weltevreden isolates were characterized by pulsed-field gel electrophoresis (pfge), plasmid profiles and antibiotic susceptibility to assess genetic diversity. our results showed a low frequency of antibiotic resistance; 35 of the 37 isolates were sensi ... | 2008 | 17993374 |
| outbreak of salmonella weltevreden infections in norway, denmark and finland associated with alfalfa sprouts, july-october 2007. | | 2007 | 18053569 |
| [survival of salmonella in spices and growth in cooked food]. | contamination of spices with pathogens has been reported worldwide, and salmonella might result in foodborne infections. in this study, we investigated the survival of salmonella in black pepper and red pepper, and the growth of the surviving salmonella in cooked food. salmonella enteritidis, salmonella weltevreden and salmonella senftenberg were inoculated into spices, and their survival during storage was examined. in black pepper, s. enteritidis was no longer viable after storage for 28 days, ... | 2008 | 18503241 |
| analysis of salmonella agona and salmonella weltevreden in malaysia by pcr fingerprinting and antibiotic resistance profiling. | forty-eight strains of salmonella enterica subsp. enterica serovar agona and 33 strains of salmonella enterica subsp. enterica serovar weltevreden were characterized by random amplified polymorphic dna (rapd) fingerprinting using 3 different arbitrary primer, enterobacterial repetitive intergenic consensus-polymerase chain reaction (eric-pcr) and antimicrobial susceptibility testing. by using rapd, 81 strains (44 strains of s. agona and 33 strains of s. weltevreden) can be clustered into 14 grou ... | 2008 | 18548329 |
| 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 |
| 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 |
| [survival of salmonella weltevreden and s. senftenberg in black tiger shrimp under frozen storage]. | survival of salmonella in black tiger shrimps during frozen storage was investigated following our previous study on salmonella contamination in frozen shrimps imported into japan. salmonella (s.) weltevreden and s. senftenberg were inoculated onto the surface and inside of black tiger shrimps without the shell. after storage at -10 degrees c, -20 degrees c and -30 degrees c for 12 weeks, the salmonella population decreased in all cases; the decrease was smallest at the lowest temperature. viabi ... | 2009 | 19436157 |
| survival and growth of salmonella and vibrio in som-fak, a thai low-salt garlic containing fermented fish product. | fermentation of raw fish is a common process in asia for improvement of shelf life and safety, however, little is known about the survival of pathogenic bacteria in these products. raw fish may be contaminated with salmonella and vibrio species. the purpose of this study was to determine survival and potential growth of salmonella enterica serovar weltevreden, s. enterica serovar enteritidis, vibrio cholerae and v. parahaemolyticus as influenced by the preservation parameters (sodium chloride, g ... | 2009 | 19640599 |
| isolated ulcerative skin lesion caused by salmonella weltevreden. | salmonella enterica serovar weltevreden is not a commonly isolated serotype in india. we report isolation of salmonella weltevreden, from an unusual site--an ulcer on the gluteal region of a patient who had undergone coronary artery bypass surgery. to our knowledge, salmonellae have never been reported to cause isolated ulcerative lesions on the skin. this is the first report of an isolated ulcerative lesion on the skin caused by salmonella weltevreden. our findings indicate that there may be mo ... | 2009 | 19762977 |
| 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 |
| geographical and temporal dissemination of salmonellae isolated from domestic animal hosts in the culiacan valley, mexico. | the prevalence and diversity of salmonellae from domestic animal hosts were investigated in the culiacan valley, mexico. a total of 240 farm animal feces (cows, chicken, and sheep) were evaluated for salmonella spp. presence from july 2008 to june 2009. salmonella enterica subsp. enterica strains were isolated from 76 samples (31.7%), and 20 serotypes were identified being salmonella oranienburg (25%), salmonella give (14%), salmonella saintpaul (12%), and salmonella minnesota (11%) the most fre ... | 2011 | 21274525 |
| genome of a european fresh-vegetable food safety outbreak strain of salmonella enterica subsp. enterica serovar weltevreden. | the genome of salmonella enterica subsp. enterica serovar weltevreden strain 2007-60-3289-1 was sequenced. the genome sequence of this fresh-vegetable isolate from scandinavia will be useful for the elucidation of plant host factors in comparison to other serovars of s. enterica subsp. enterica. | 2011 | 21296964 |
| 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 |
| evaluation of aerated steam treatment of alfalfa and mung bean seeds to eliminate high levels of escherichia coli o157:h7 and o178:h12, salmonella enterica, and listeria monocytogenes. | sprouts contaminated with human pathogens are able to cause food-borne diseases due to the favorable growth conditions for bacteria during germination and because of minimal processing steps prior to consumption. we have investigated the potential of hot humid air, i.e., aerated steam, to treat alfalfa and mung bean seeds which have been artificially contaminated with escherichia coli o157:h7, salmonella enterica subsp. enterica serovar weltevreden, and listeria monocytogenes scott a. in additio ... | 2013 | 23709507 |
| non-typhoidal salmonella colonization in chickens and humans in the mekong delta of vietnam. | salmonellosis is a public health concern in both the developed and developing countries. although the majority of human non-typhoidal salmonella enterica (nts) cases are the result of foodborne infections or person-to-person transmission, nts infections may also be acquired by environmental and occupational exposure to animals. while a considerable number of studies have investigated the presence of nts in farm animals and meat/carcasses, very few studies have investigated the risk of nts coloni ... | 2017 | 27152998 |
| salmonella grows vigorously on seafood and expresses its virulence and stress genes at different temperature exposure. | seafood is not considered the natural habitat of salmonella except the river fish, but still, the incidence of salmonella in seafood is in a steady rise. by extending our understanding of salmonella growth dynamics and pathogenomics in seafood, we may able to improve seafood safety and offer better strategies to protect the public health. the current study was thus aimed to assess the growth and multiplication of non-typhoidal and typhoidal salmonella serovars on seafood and further sought to ev ... | 2015 | 26531707 |
| salmonella weltevreden food poisoning in a tea garden of assam: an outbreak investigation. | salmonella enterica serovar weltevreden has been a rare cause of acute gastroenteritis occurring worldwide. here, we report an outbreak of food poisoning in a tea garden. | 2015 | 26470955 |
| salmonella isolates in the introduced asian house gecko (hemidactylus frenatus) with emphasis on salmonella weltevreden, in two regions in costa rica. | the asian house gecko hemidactylus frenatus has been widely introduced in costa rica and tends to establish in human settlements. some studies in other invaded countries have suggested that this gecko plays a significant role in the epidemiology of salmonellosis and it is of value to public health. to our knowledge, no studies have examined salmonella from this species in costa rica. therefore, we collected 115 geckos from houses in two costa rican regions. we examined gut contents for salmonell ... | 2015 | 26378974 |
| draft genome sequence of multidrug resistant salmonella enterica serovar weltevreden isolated from seafood. | salmonella enterica subsp. enterica serovar weltevereden is the most frequent serovar isolated from asia. here, we report a draft genome sequence of multidrug resistant salmonella weltevreden 9 isolated from seafood. whole-genome of this isolate and annotation will help enhance the understanding of this pathogenic multidrug-resistant serovar. | 2015 | 25874015 |
| transcriptional profile of salmonella enterica subsp. enterica serovar weltevreden during alfalfa sprout colonization. | sprouted seeds represent a great risk for infection by human enteric pathogens because of favourable growth conditions for pathogens during their germination. the aim of this study was to identify mechanisms of interactions of salmonella enterica subsp. enterica weltevreden with alfalfa sprouts. rna-seq analysis of s. weltevreden grown with sprouts in comparison with m9-glucose medium showed that among a total of 4158 annotated coding sequences, 177 genes (4.3%) and 345 genes (8.3%) were transcr ... | 2014 | 24308841 |
| an outbreak of foodborne gastroenteritis caused by dual pathogens, salmonella enterica serovar weltevreden and vibrio fluvialis in kolkata, india. | salmonella enterica serovar weltevreden and vibrio fluvialis were identified as etiological agents of a foodborne gastroenteritis outbreak after an iftar feast in north dumdum. of the 278 cases admitted to the infectious diseases hospital, kolkata, 44 stool samples were tested for the enteric pathogens. six were positive for salmonella weltevreden, 5 for vibrio fluvialis, and 8 contained both of the pathogens. consumption of mutton-ghogni might have been the likely vehicle of this outbreak. in t ... | 2013 | 23789767 |
| comparative genomic analysis of salmonella enterica subsp. enterica serovar weltevreden foodborne strains with other serovars. | salmonella enterica subsp. enterica serovar weltevreden is a dominant serovar associated with foodborne gastroenteritis in south-east asia and emerging in europe associated with fresh vegetables. here we compared the genome of strain 2007-60-3289-1 linked to an alfalfa sprout outbreak in scandinavia with a s. weltevreden strain isolated from scallops in the usa and with other s. enterica serovars. a unique plasmid psw82 was identified for s. weltevreden carrying a two-component type ii non-ribos ... | 2012 | 22341936 |
| irrigation water quality and the benefits of implementing good agricultural practices during tomato (lycopersicum esculentum) production. | the implementation of good agricultural practices (gap) from irrigation water to the tomato packaging process enhances the safety of fresh produce and its value throughout the food chain. the aim of the present study was to show that fresh produce farms that apply and enforce gap could reduce the presence of salmonella in finished produce. samples were collected biweekly from six packing houses from the central region of sinaloa, méxico, for the isolation of salmonella spp by the iso 6579:2002 m ... | 2014 | 24682661 |
| differential expression of virulence genes and role of gyra mutations in quinolone resistant and susceptible strains of salmonella weltevreden and newport isolated from seafood. | to investigate the differential expression of virulence genes and role of gyra mutations in quinolone resistant and susceptible strains of salmonella isolated from seafood. | 2015 | 26249136 |
| detection of class 1 integrons in salmonella weltevreden and silent antibiotic resistance genes in some seafood-associated nontyphoidal isolates of salmonella in south-west coast of india. | to study the antibiogram of 40 seafood isolates of salmonella and use of pcr to detect the presence of integrons and genes coding for antibiotic resistance. | 2012 | 22443444 |
| distribution of salmonella serovars and antimicrobial susceptibility from poultry and swine farms in central vietnam. | this study was conducted to estimate the prevalence of salmonella spp. and their antimicrobial susceptibilities on poultry and swine farms, sampled in 2 regions in central vietnam. a total of 67 poultry farms and 46 swine farms were sampled in a period of 5 months (from september 2012 to january 2013). salmonella spp. was prevalent in 46.3% and 71.7% of poultry and swine farms, respectively. altogether, 99 non-typhoidal salmonella were isolated and the most common serovars were salmonella weltev ... | 2016 | 26952244 |
| salmonella weltevreden in integrated and non-integrated tilapia aquaculture systems in guangdong, china. | integrated tilapia-pig farming, which uses manure from pigs as fertilizers in fish pond, is a traditional and common production system practised by small-scale farmers in south-east asia. although such systems may be environmentally sustainable, they also pose potential food safety hazards including transmission of faecal zoonotic pathogens and accumulation of antimicrobial and other chemical residues. this study aimed to determine differences in occurrence and characteristics of salmonella spp. ... | 2017 | 28400002 |
| clonal occurrence of salmonella weltevreden in cultured shrimp in the mekong delta, vietnam. | this study investigated the occurrence, serovar and antimicrobial resistance of salmonella spp. in shrimp samples from intensive and extensive farms located in three different provinces in the mekong delta, vietnam. shrimp from 11 of the 48 farms all contained s. weltevreden, except for one farm yielding s. agona, with no difference in salmonella occurrence between the two production systems. pulsed field gel electrophoresis (pfge) of s. weltevreden showed closely related xbai pulse types, sugge ... | 2015 | 26222547 |