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Journal articles on the topic 'Salmonella Typhimurium'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

Masdor, Noor Azlina, Azizah Abdul Talib, Noorshinah Hussin, Aseha Yahya, and Zamri Ishak. "Screening for the Presence of Salmonella typhimurium in Local Meat using Dot-Elisa." Journal of Environmental Microbiology and Toxicology 2, no. 1 (2014): 7–10. http://dx.doi.org/10.54987/jemat.v2i1.88.

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Salmonella infections in commercial poultry have long been an industry concern and the subject of many investigations. Since poultry is a major food source, its contamination with salmonellae may result in the development of human illness. Salmonella typhimurium is one of paratyphoid Salmonellae most commonly associated with poultry. Thus, a detection assay for this bacterium is highly sought after. Detection of Salmonella typhimurium using monoclonal antibody is specific to only one epitope while polyclonal antibody has the ability to detect various serovars due to the presence of multitude o

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2

Spiehs, Mindy, Gerald Shurson, and Lee Johnston. "Effects of two direct-fed microbials on the ability of pigs to resist an infection with Salmonella enterica serovar Typhimurium." Journal of Swine Health and Production 16, no. 1 (2008): 27–36. http://dx.doi.org/10.54846/jshap/534.

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Objective: To evaluate the effects of direct-fed microbials (DFMs) containing either Bacillus licheniformis and Bacillus subtilis or Enterococcus faecium on the ability of finisher pigs to resist a Salmonella serovar Typhimurium infection. Materials and methods: Forty finishing pigs were used in a 12-day disease challenge study. Dietary treatments included no DFM (Control; 20 pigs), DFM provided in drinking water (E faecium), or DFM provided in feed (Bacillus). Ten Control pigs were not challenged with Salmonella Typhimurium; the remaining 30 pigs were inoculated on Day 0. Fecal samples were c

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3

BROCKMANN, STEFAN O., ISOLDE PIECHOTOWSKI, and PETER KIMMIG. "Salmonella in Sesame Seed Products." Journal of Food Protection 67, no. 1 (2004): 178–80. http://dx.doi.org/10.4315/0362-028x-67.1.178.

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In the context of an international outbreak of multiresistant Salmonella Typhimurium DT 104 that was correlated to the consumption of halvah (“helva,” an Asian candy made from sesame seed), we examined several sesame seed products for the occurrence of Salmonella. Of 117 ready-to-eat food items containing sesame, we isolated salmonellae from 11 (9.4%) samples. In addition to finding Salmonella Typhimurium DT 104 in the halvah involved in the outbreak, we also isolated different Salmonella Typhimurium strains out of halvah from other manufacturers and countries of origin, as well as Salmonella

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4

AL-kafaji, Narjis Amer, Zainab R. Zghair, and MethaqGhlibAbd AL-Rubaie. "Pathological study of alcoholic plant agolanceolata crude extracts effect on some Salmonella species invitro and in vivo." Kufa Journal For Veterinary Medical Sciences 7, no. 1B (2016): 109–16. http://dx.doi.org/10.36326/kjvs/2016/v7i1b4272.

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This study was designed to explore the pathological effect of alcoholic plant agolanceolata crude extracts effect on some Salmonella species invitro and in vivo study by using laboratory mice .plant agolanceolata crude extract were dealing in vitro study against some virulent bacteria including Salmonella typhimurium ,Salmonella typhiond Salmonella hadar. And using the concentrations (100,150,200,250 and 300) mg for plan tagolanceolata crude extract ,concentration at 300 mg and the highest inhibitory effect on the three types of salmonella ,when compared with the other concentrations .The path

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ZHAO, TONG, MICHAEL P. DOYLE, PAULA J. FEDORKA-CRAY, PING ZHAO, and SCOTT LADELY. "Occurrence of Salmonella enterica Serotype Typhimurium DT104A in Retail Ground Beef." Journal of Food Protection 65, no. 2 (2002): 403–7. http://dx.doi.org/10.4315/0362-028x-65.2.403.

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Surveillance data of cattle and human isolates of Salmonella enterica serovar Typhimurium DT104 indicate that this pathogen emerged worldwide in the 1980s, particularly in cattle. Studies were conducted to determine the prevalence of Salmonella Typhimurium DT104 in ground beef. Samples were also tested for the presence of generic Escherichia coli. A total of 404 fresh ground beef samples obtained at retail stores from New York, San Francisco, Philadelphia, Denver, Atlanta, Houston, and Chicago were shipped overnight to Georgia for processing. Salmonella spp. were isolated from 14 (3.5%) sample

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6

van Dissel, J. T., J. J. Stikkelbroeck, B. C. Michel, P. C. Leijh, and R. van Furth. "Salmonella-typhimurium-specific difference in rate of intracellular killing by resident peritoneal macrophages from salmonella-resistant CBA and salmonella-susceptible C57BL/10 mice." Journal of Immunology 138, no. 12 (1987): 4428–34. http://dx.doi.org/10.4049/jimmunol.138.12.4428.

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Abstract The aim of the present study was to determine whether the difference between the rate of intracellular killing of Salmonella typhimurium by macrophages of salmonella-resistant CBA and salmonella-susceptible C57BL/10 mice also holds for other salmonellae and other bacteria species. After in vivo phagocytosis, the initial rate of in vitro intracellular killing of S. typhimurium phagetype 505, S. typhimurium phagetype 510, and S. typhimurium M206 by macrophages of CBA mice amounted always to approximately 1.7 times the value found for macrophages of C57BL/10 mice (p less than 0.001), ind

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7

GUAN, JIEWEN, MARIA CHAN, BÉATRICE ALLAIN, ROSEMONDE MANDEVILLE, and BRIAN W. BROOKS. "Detection of Multiple Antibiotic–Resistant Salmonella enterica Serovar Typhimurium DT104 by Phage Replication–Competitive Enzyme-Linked Immunosorbent Assay." Journal of Food Protection 69, no. 4 (2006): 739–42. http://dx.doi.org/10.4315/0362-028x-69.4.739.

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A phage replication–competitive enzyme-linked immunosorbent assay (PR-cELISA) was developed for the detection of multiple antibiotic–resistant Salmonella Typhimurium DT104. In the PR-cELISA procedure, a phage, BP1, was inoculated into a log-phase bacterial culture at a ratio of 1:100. After a 3-h incubation of the mixture, BP1 replication was measured by cELISA based on the competitive binding between BP1 and biotinylated BP1 to Salmonella Typhimurium smooth lipopolysaccharide. Among the 84 Salmonella strains and 9 non-Salmonella strains that were tested by PR-cELISA, BP1 detected 39 of 40 Sal

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8

Springer, Sven, Tobias Theuß, Imre Toth, and Zsuzsanna Szogyenyi. "Invasion inhibition effects and immunogenicity after vaccination of SPF chicks with a Salmonella Enteritidis live vaccine." Tierärztliche Praxis Ausgabe G: Großtiere / Nutztiere 49, no. 04 (2021): 249–55. http://dx.doi.org/10.1055/a-1520-1369.

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Abstract Objective Meat and eggs from chickens infected with Salmonella Enteritidis, Salmonella Typhimurium and Salmonella Infantis are considered to be an important source of Salmonella infections for humans. In order to control Salmonella infections in chickens, basic biosecurity measures are taken in combination with inactivated or attenuated live vaccines. Apart from an adaptive immune response, some live vaccines also induce innate immune mechanisms that prevent or inhibit systemic invasion with homologous Salmonella serovars. It is unknown whether these invasion inhibition effects are al

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9

Madajczak, Grzegorz, Bożena Dera-Tomaszewska, Jolanta Szych, Anna Chróst, and Monika Wasiak. "Molecular Methods for Identification of Monophasic Salmonella Typhimurium Strains." Polish Journal of Microbiology 64, no. 4 (2015): 383–86. http://dx.doi.org/10.5604/17331331.1185238.

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Two molecular biology methods were used to differentiate Salmonella enterica 1,4,[5],12:i:- strains: “Salmonella Check&Trace microarray” (CT) and multiplex PCR (mPCR). For 92 strains in CT result “Salmonella 1,4,[5],12:i:-“ were obtained. Those strains were confirmed in mPCR as monophasic fljB-lack Salmonella Typhimurium. For 17 strains, which in CT assay were recognized as Salmonella Typhimurium, the same identification was obtained in mPCR. Reference Salmonella strains: Lagos, Agama, Tsevie, Glocester and Tumodi in CT were recognized as Salmonella genovar, in mPCR – as Salmonella O:4, H:

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10

House, John K., Raúl C. Mainar-Jaime, Bradford P. Smith, Ann-Marie House, and Darin Y. Kamiya. "Risk factors for nosocomial Salmonella infection among hospitalized horses." Journal of the American Veterinary Medical Association 214, no. 10 (1999): 1511–16. http://dx.doi.org/10.2460/javma.1999.214.10.1511.

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Objective To identify risk factors for nosocomial Salmonella infections among hospitalized horses. Design Longitudinal study. Animals 1,583 horses hospitalized in an intensive care unit between January 1992 and June 1996. Procedure Survivor functions were used to estimate time to shedding salmonellae for various Salmonella serotypes. Survival analysis was then used to determine how variables associated with patient management, environmental conditions, hospital conditions, and other disease processes affected the risk of nosocomial Salmonella infection. Results 78 horses shed Salmonella organi

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11

RAJASHEKARA, G., E. HAVERLY, D. A. HALVORSON, K. E. FERRIS, D. C. LAUER, and K. V. NAGARAJA. "Multidrug-Resistant Salmonella Typhimurium DT104 in Poultry." Journal of Food Protection 63, no. 2 (2000): 155–61. http://dx.doi.org/10.4315/0362-028x-63.2.155.

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Salmonella Typhimurium isolates from feed ingredients or poultry sources isolated during 1995 to 1997 from different geographical locations within Minnesota were examined for the presence of Salmonella Typhimurium definitive type 104 (DT104). Antibiotic susceptibility studies indicated that 15 of 50 isolates of Salmonella Typhimurium had an antibiotic resistance pattern (ampicillin, chloramphenicol, streptomycin, sulfonamides, and tetracycline) that is usually observed with multidrug-resistant Salmonella Typhimurium DT104. Of the 15 isolates showing the antibiotic resistance pattern, 8 isolate

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12

OH, SANG-IK, JONG WAN KIM, MYEONGJU CHAE, et al. "Characterization and Antimicrobial Resistance of Salmonella Typhimurium Isolates from Clinically Diseased Pigs in Korea." Journal of Food Protection 79, no. 11 (2016): 1884–90. http://dx.doi.org/10.4315/0362-028x.jfp-16-131.

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ABSTRACT This study investigated the prevalence of Salmonella enterica serovar and antimicrobial resistance in Salmonella Typhimurium isolates from clinically diseased pigs collected from 2008 to 2014 in Korea. Isolates were also characterized according to the presence of antimicrobial resistance genes and pulsed-field gel electrophoresis patterns. Among 94 Salmonella isolates, 81 (86.2%) were identified as being of the Salmonella Typhimurium serotype, followed by Salmonella Derby (6 of 94, 6.4%), Salmonella 4,[5],12:i:− (4 of 94, 4.3%), Salmonella Enteritidis (2 of 94, 2.1%), and Salmonella B

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13

KIM, H. J., S. H. PARK, T. H. LEE, et al. "Identification of Salmonella enterica Serovar Typhimurium Using Specific PCR Primers Obtained by Comparative Genomics in Salmonella Serovars." Journal of Food Protection 69, no. 7 (2006): 1653–61. http://dx.doi.org/10.4315/0362-028x-69.7.1653.

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Salmonella enterica serovar Typhimurium is a major foodborne pathogen throughout the world. Until now, the specific target genes for the detection and identification of serovar Typhimurium have not been developed. To determine the specific probes for serovar Typhimurium, the genes of serovar Typhimurium LT2 that were expected to be unique were selected with the BLAST (Basic Local Alignment Search Tool) program within GenBank. The selected genes were compared with 11 genomic sequences of various Salmonella serovars by BLAST. Of these selected genes, 10 were expected to be specific to serovar Ty

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14

Kazlow, Philip G., Jeffrey Freed, Joel R. Rosh, et al. "Salmonella typhimurium Appendicitis." Journal of Pediatric Gastroenterology and Nutrition 13, no. 1 (1991): 101–3. http://dx.doi.org/10.1097/00005176-199107000-00019.

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15

Frayha, Rida A. "Salmonella typhimurium Bacteriuria." Archives of Internal Medicine 145, no. 4 (1985): 645. http://dx.doi.org/10.1001/archinte.1985.00360040063014.

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16

Kazlow, Philip G., Jeffrey Freed, Joel R. Rosh, et al. "Salmonella typhimurium Appendicitis." Journal of Pediatric Gastroenterology and Nutrition 13, no. 1 (1991): 101–3. http://dx.doi.org/10.1002/j.1536-4801.1991.tb10299.x.

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SummaryA child with signs and symptoms of acute gastroenteritis developed localization of her pain to the right lower quadrant. A clinical diagnosis of appendicitis was made and an inflamed appendix was found at surgery. The postoperative period was marked by high spiking fevers and profuse nonbloody diarrhea. Cultures of the appendix and the stool revealed Salmonella typhimurium. Nontyphoidal Salmonella organisms are a rare cause of acute suppurative appendicitis. Intraoperative cultures of the appendix and peritoneal fluid as well as postoperative cultures of the diarrheal fluid were crucial

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17

Al-Kaissy, G. A. "The Use of Iraqi Probiotic and Poultrygrow 250 in Reducing the Experimentally Infection of Broiler Chicks with Salmonella Typhimurium." Iraqi Journal of Veterinary Medicine 30, no. 2 (2006): 1–10. http://dx.doi.org/10.30539/iraqijvm.v30i2.811.

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The study was conducted to find out the effect of some feed additives inreducing the infection rate of broilers with Salmonella typhimurium.Forty broiler chicks at one week of age were divided into 4 treatments, 10chicks each as follows:T1: uninfected control.T2: Salmonella typhimurium infected + Iraqi Probiotic.T3: Salmonella typhimurium infected + Poultrygrow 250.T4: Salmonella typhimurium infected only.One day after feeding on feed additives, the birds were experimentallyinfected with Salmonella typhimurium through the mouth.Results show that Iraqi probiotic did not decrease the severity of

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18

Refsum, Thorbjørn, Kjell Handeland, Dorte Lau Baggesen, Gudmund Holstad, and Georg Kapperud. "Salmonellae in Avian Wildlife in Norway from 1969 to 2000." Applied and Environmental Microbiology 68, no. 11 (2002): 5595–99. http://dx.doi.org/10.1128/aem.68.11.5595-5599.2002.

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ABSTRACT Postmortem records of wild-living birds in Norway with laboratory-confirmed findings of salmonella infection were summarized for the period from 1969 to 2000. Salmonella spp. were isolated from 470 birds belonging to 26 species. The salmonella-positive birds included 441 small passerines, 15 gulls, 5 waterfowl, 4 birds of prey, 3 doves, and 2 crows. The bullfinch (Pyrrhula pyrrhula) was by far the most frequently recorded species (54% of the cases). Salmonella enterica serover Typhimurium was recovered from all cases except from one hooded crow (Corvus corone), which yielded serovar P

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19

NABBUT, NASSIM H. "The Salmonella Problem in Lebanon and Its Role in Acute Gastroenteritis1." Journal of Food Protection 56, no. 3 (1993): 270–72. http://dx.doi.org/10.4315/0362-028x-56.3.270.

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The present report presents the available data on the first isolation, occurrence, and distribution of the unadapted group of salmonellae in various nonhuman sources in Lebanon. Salmonella typhimurium was the most predominant serotype in poultry. It is the leading serotype in its zoological distribution as it was isolated from 10 animal species. Other unadapted Salmonella isolates from poultry, listed according to their descending frequency, included Salmonella bareilly, Salmonella pullorum, Salmonella infantis, Salmonella oranienburg, and Salmonella aqama. Salmonella dublin was the most frequ

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Marcelo M., Geraldine, Raúl Rosadio A., Ana Chero O., Gerardo Díaz O., Aldo Ciprian C., and Lenin Maturrano H. "Identificación de Salmonella Enteritidis y Salmonella Typhimurium en Cuyes mediante la Técnica de PCR Múltiple." Revista de Investigaciones Veterinarias del Perú 28, no. 2 (2017): 411. http://dx.doi.org/10.15381/rivep.v28i2.13074.

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El objetivo del presente estudio fue identificar mediante PCR múltiple la posible existencia de los serovares Salmonella Typhimurium y Enteritidis en 25 cepas de Salmonella spp previamente aisladas de cuyes e identificadas por sus características metabólicas. Mediante el análisis molecular se identificaron todas las cepas como Salmonella Typhimurium, evidenciando la amplificación de los cebadores específicos para los genes invA y fliC pertenecientes al género Salmonella y Salmonella Typhimurium, respectivamente. El presente estudio permitió establecer una metodología rápida para la identificac

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Loynachan, A. T., and D. L. Harris. "Dose Determination for Acute Salmonella Infection in Pigs." Applied and Environmental Microbiology 71, no. 5 (2005): 2753–55. http://dx.doi.org/10.1128/aem.71.5.2753-2755.2005.

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ABSTRACT Pigs were exposed to various levels of Salmonella enterica subsp. enterica serovar Typhimurium by either intranasal inoculation or by subjecting them to a contaminated environment. More than 103 salmonellae were required to induce acute Salmonella infection. These results indicate that intervention against acute Salmonella infection in lairage may be more readily achieved than previously thought.

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THOUAND, G., P. VACHON, S. LIU, M. DAYRE, and M. W. GRIFFITHS. "Optimization and Validation of a Simple Method Using P22::luxAB Bacteriophage for Rapid Detection of Salmonella enterica Serotypes A, B, and D in Poultry Samples." Journal of Food Protection 71, no. 2 (2008): 380–85. http://dx.doi.org/10.4315/0362-028x-71.2.380.

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A simple method was developed for the fast and inexpensive detection of Salmonella Typhimurium using a recombinant P22::luxAB phage. All the steps from phage production to detection were considered. A strain of Salmonella Typhimurium harboring the prophage P22::luxAB was grown in batch culture to produce spontaneously the recombinant bacteriophage. Batch production to stationary phase was better for propagation of the phage and led to a total population of 4.3 × 109 (±4.3 × 109) PFU/ml of P22, including only 1.4 × 106 (±1 × 106) PFU/ml harboring the luxAB genes. After preenrichment, a simple f

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Nafisah, Aulia Erta, Bernadetta Octavia, and Endang Gati Lestari. "Antibacterial Activity of Green Meniran Extract (Phyllanthus niruri Linn) on The Growth of Salmonella typhimurium." Indonesian Journal of Bioscience (IJOBI) 1, no. 2 (2023): 57–65. http://dx.doi.org/10.21831/ijobi.v1i2.215.

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Salmonella typhimuriumis a bacterium that causes digestive infections, gastroenteritis, and food poisoning, psickcaused byBacterial infection is a health problem in developing countries, including Indonesia. Green meniran (Phyllanthus niruri L.), is a herbaceous plant containing flavonoids, alkaloids, saponins, and tannins which have antibacterial activity which is expected to suppress the development of Salmonella sp. The aim of the study was to determine the ability of green meniran extract as an antibacterial to inhibit the growth of Salmonella typhimurium bacteria. The study used a complet

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Hermans, Armand P. H. M., Tjakko Abee, Marcel H. Zwietering, and Henk J. M. Aarts. "Identification of Novel Salmonella enterica Serovar Typhimurium DT104-Specific Prophage and Nonprophage Chromosomal Sequences among Serovar Typhimurium Isolates by Genomic Subtractive Hybridization." Applied and Environmental Microbiology 71, no. 9 (2005): 4979–85. http://dx.doi.org/10.1128/aem.71.9.4979-4985.2005.

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ABSTRACT Genomic subtractive hybridization was performed between Salmonella enterica serovar Typhimurium LT2 and DT104 to search for novel Salmonella serovar Typhimurium DT104-specific sequences. The subtraction resulted mainly in the isolation of DNA fragments with sequence similarity to phages. Two fragments identified were associated with possible virulence factors. One fragment was identical to irsA of Salmonella serovar Typhimurium ATCC 14028, which is suggested to be involved in macrophage survival. The other fragment was homologous to HldD, an Escherichia coli O157:H7 lipopolysaccharide

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AHN, JUHEE, SONGRAE KIM, LAE-SEUNG JUNG, and DEBABRATA BISWAS. "In Vitro Assessment of the Susceptibility of Planktonic and Attached Cells of Foodborne Pathogens to Bacteriophage P22-Mediated Salmonella Lysates." Journal of Food Protection 76, no. 12 (2013): 2057–62. http://dx.doi.org/10.4315/0362-028x.jfp-13-183.

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This study was designed to evaluate the lytic activity of bacteriophage P22 against Salmonella Typhimurium ATCC 19585 (Salmonella Typhimurium P22−) at various multiplicities of infections (MOIs), the susceptibility of preattached Salmonella cells against bacteriophage P22, and the effect of P22-mediated bacterial lysates (extracellular DNA) on the attachment ability of Listeria monocytogenes ATCC 7644 and enterohemorrhagic Escherichia coli ATCC 700927 to surfaces. The numbers of attached Salmonella Typhimurium P22− cells were effectively reduced to below the detection limit (1 log CFU/ml) at t

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SINGH, BHOJ RAJ, MUDIT CHANDRA, and RAVIKANT AGARWAL. "Interaction of Salmonella enterica Subspecies enterica Serovar Typhimurium and Mung Bean (Phaseolus aureus) Plants." Journal of Food Protection 68, no. 3 (2005): 476–81. http://dx.doi.org/10.4315/0362-028x-68.3.476.

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The effect of Salmonella enterica subspecies enterica serovar Typhimurium, a zoonotic serovar, on mung bean (Phaseolus aureus) cultivar Pant Mung-3 plants was studied. Inoculation of mung bean seeds with Salmonella Typhimurium (7.2 × 105 CFU/ml) reduced sprouting rate (P &lt; 0.07). This effect was more pronounced at higher levels of contamination. In the soil inoculated with Salmonella Typhimurium (7.2 × 106 CFU/g), germination was retarded and the number of defective sprouts was also significantly higher (P &lt; 0.002). Salmonella Typhimurium grew inside germinating seeds and plant t

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KEITH, MELVINA. "Evaluation of an Automated Enzyme-Linked Fluorescent Immunoassay System for the Detection of Salmonellae in Foods." Journal of Food Protection 60, no. 6 (1997): 682–85. http://dx.doi.org/10.4315/0362-028x-60.6.682.

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An automated qualitative enzyme-linked fluorescent immunoassay was compared to a conventional method outlined in the FDA Bacteriological Analytical Manual for the detection of salmonellae in artificially contaminated milk, whey, and carbohydrate-based products. The evaluation parameters included sensitivity and specificity using pure cultures of Salmonella typhimurium, Salmonella tennessee, and Citrobacter freundii and mixtures of these species to address the effect of competing microflora. The overall detection rate of the conventional method was 97% compared to a detection rate of 96% for th

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Davies, Peter Robert, Frank Gerardus Elisabeth Maria Bovee, Julie Ann Funk, William Edward Morgan Morrow, Frank T. Jones, and John Deen. "Isolation of Salmonella serotypes from feces of pigs raised in a multiple-site production system." Journal of the American Veterinary Medical Association 212, no. 12 (1998): 1925–29. http://dx.doi.org/10.2460/javma.1998.212.12.1925.

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Objective To determine the prevalence and serotypes of Salmonella organisms in feces of pigs raised in a modern, multiple-site production system. Design Cross-sectional study of prevalence. Sample Population Swine housed on 7 farms (1 gilt development farm, 2 breeding farms, 1 nursery farm, and 3 finishing farms) that formed a multiple-site production system. Procedure Fecal samples were obtained from 792 pigs (96 to 202/farm) and submitted for bacteriologic culture of Salmonella organisms. Results Salmonellae were isolated from pigs on all 7 farms and from 95 of 792 (12%) fecal samples. Preva

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Siravati, Maga Raju, Manjanaik Bojayanaik, Srinu Nayak Banavath, et al. "Efficacy of Gamma Irradiation in Eliminating Salmonella typhimurium Contamination in Seafood." European Journal of Nutrition & Food Safety 16, no. 11 (2024): 264–73. http://dx.doi.org/10.9734/ejnfs/2024/v16i111591.

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Salmonella is a foodborne pathogen known to cause gastrointestinal disturbances. Contamination of seafood with Salmonella is a major public health concern, often occurring through cross-contamination. The natural habitat of Salmonella is the gastrointestinal tract of animals, including birds and humans. The current research study was carried out to investigate the gamma radiation sensitivity of Salmonella Typhimurium (NCIM 2501) in shrimp, squid, and clam samples. The decimal reduction dose (D10) values of Salmonella Typhimurium in saline and nutrient broth were 0.119 ± 0.004 kGy and 0.139 ± 0

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Mulaw, Guesh, Diriba Muleta, Anteneh Tesfaye, and Tesfaye Sisay. "Protective Effect of Potential Probiotic Strains from Fermented Ethiopian Food against Salmonella Typhimurium DT104 in Mice." International Journal of Microbiology 2020 (April 14, 2020): 1–8. http://dx.doi.org/10.1155/2020/7523629.

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Salmonella is one of the most harmful pathogens responsible for foodborne outbreaks, illnesses and deaths. The aim of this study was to evaluate the effect of potentially probiotic strains against Salmonella Typhimurium DT104 in mice. The compatibility test among the selected potential probiotic strains (Lactobacillus plantarum K132, Lactobacillus paracasei K114 and Lactococcus lactis E124) using the cross-streaking method showed the absence of antagonism. The anti-Salmonella activities of coculture of the isolated potential probiotics in the form of mixed or single culture showed a remarkable

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Dunstan, Sarah J., Cameron P. Simmons, and Richard A. Strugnell. "Use of In Vivo-Regulated Promoters To Deliver Antigens from Attenuated Salmonella enterica var. Typhimurium." Infection and Immunity 67, no. 10 (1999): 5133–41. http://dx.doi.org/10.1128/iai.67.10.5133-5141.1999.

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ABSTRACT This study describes the construction and analysis of three in vivo-inducible promoter expression plasmids, containing pnirB, ppagC, and pkatG, for the delivery of foreign antigens in the ΔaroAD mutant ofSalmonella enterica var. Typhimurium (hereafter referred to as S. typhimurium). The reporter genes encoding β-galactosidase and firefly luciferase were used to assess the comparative levels of promoter activity in S. typhimuriumin vitro in response to different induction stimuli and in vivo in immunized mice. It was determined that the ppagC construct directed the expression of more β

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Wang, Renjie, Senlin Li, Hai Jia, et al. "Protective Effects of Cinnamaldehyde on the Inflammatory Response, Oxidative Stress, and Apoptosis in Liver of Salmonella typhimurium-Challenged Mice." Molecules 26, no. 8 (2021): 2309. http://dx.doi.org/10.3390/molecules26082309.

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Salmonella typhimurium infection is associated with gastrointestinal disorder and cellular injury in the liver of both humans and animals. Cinnamaldehyde, the main component of essential oil from cinnamon, has been reported to have anti-inflammatory, anti-oxidative, and anti-apoptotic effects. However, it remains unknown whether cinnamaldehyde can alleviate Salmonella typhimurium infection-induced liver injury in mice. In the present study, we found that cinnamaldehyde attenuated Salmonella typhimurium-induced body weight loss, the increase of organ (liver and spleen) indexes, hepatocyte apopt

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HUME, M. E., D. J. NISBET, S. A. BUCKLEY, R. L. ZIPRIN, R. C. ANDERSON, and L. H. STANKER. "Inhibition of In Vitro Salmonella Typhimurium Colonization in Porcine Cecal Bacteria Continuous-Flow Competitive Exclusion Cultures†." Journal of Food Protection 64, no. 1 (2001): 17–22. http://dx.doi.org/10.4315/0362-028x-64.1.17.

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Continuous-flow (CF) chemostate cultures were used as models to determine the potential usefulness of undefined porcine cecal bacteria as competitive exclusion (CE) cultures against colonization by Salmonella Typhimurium. One culture, pCF1, was derived from cecal bacteria of an animal maintained on antibiotic-free feed, while the other culture, pCF4, was derived from cecal bacteria of an animal maintained on feed containing chlortetracycline. The effectiveness against a chlortetracycline-resistant Salmonella Typhimurium was examined in CF cultures maintained in the absence (pCF1 and pCF4) and

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Stecher, Bärbel, Andrew J. Macpherson, Siegfried Hapfelmeier, Marcus Kremer, Thomas Stallmach, and Wolf-Dietrich Hardt. "Comparison of Salmonellaenterica Serovar Typhimurium Colitis in Germfree Mice and Mice Pretreated with Streptomycin." Infection and Immunity 73, no. 6 (2005): 3228–41. http://dx.doi.org/10.1128/iai.73.6.3228-3241.2005.

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ABSTRACT Salmonella enterica subspecies 1 serovar Typhimurium is a common cause of bacterial enterocolitis. Mice are generally protected from Salmonella serovar Typhimurium colonization and enterocolitis by their resident intestinal microflora. This phenomenon is called “colonization resistance” (CR). Two murine Salmonella serovar Typhimurium infection models are based on the neutralization of CR: (i) in specific-pathogen-free mice pretreated with streptomycin (StrSPF mice) antibiotics disrupt the intestinal microflora; and (ii) germfree (GF) mice are raised without any intestinal microflora,

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LIN, JER-SHENG, and HAU-YANG TSEN. "Development and Use of Polymerase Chain Reaction for the Specific Detection of Salmonella Typhimurium in Stool and Food Samples." Journal of Food Protection 62, no. 10 (1999): 1103–10. http://dx.doi.org/10.4315/0362-028x-62.10.1103.

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Salmonella Typhimurium is one of the most important Salmonella serovars that may cause foodborne disease and human salmonellosis infection. Detection of this organism in the clinical samples of persons with gastroenteritis and the food samples associated with such persons may allow us to trace the cause of disease. Because malic acid dehydrogenase, an enzyme of the citric acid cycle, is common to organisms, the gene (mdh) coding for this enzyme was selected for the design of Salmonella Typhimurium-specific polymerase chain reaction (PCR) primers. By comparison of the mdh gene sequences of Salm

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Michaelsen, R., F. M. Cardoso, R. N. Schneider, et al. "SALMONELLA TYPHIMURIUM EM LINFONODOS MESENTÉRICOS DE OVINOS AO ABATE." Arquivos do Instituto Biológico 78, no. 1 (2011): 97–102. http://dx.doi.org/10.1590/1808-1657v78p0972011.

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RESUMO O rebanho de ovinos no Brasil está estimado em mais de 16 milhões de cabeças. Embora o consumo da carne desta espécie ainda seja pequeno, comparado ao de outros países, o consumo de carne, inclusive ovina, tem sido associado às doenças transmitidas por alimentos, em especial a salmonelose. No presente estudo, investigou-se a ocorrência de salmonelas em linfonodos mesentéricos e conteúdo intestinal de 175 ovinos ao abate. “Pools” constituído por cinco amostras de contéudo fecal ou 5 amostras de linfonodos de 25 g foram pre-enriquecidos em 250 mL de água peptonada tamponada e incubados a

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Fernandes, Sueli Aparecida, Ana Terezinha Tavechio, Suzel N. Neme, et al. "Marcadores epidemiológicos de Salmonella typhimurium e Salmonella agona." Revista do Instituto de Medicina Tropical de São Paulo 34, no. 2 (1992): 91–98. http://dx.doi.org/10.1590/s0036-46651992000200003.

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Entre as cepas de S. typhimurium e S. agona isoladas no período 1971-1987 foram caracterizados os biotipos, colicinotipos e antibiotipos de 734 cepas de S. typhimurium e 631 de S. agona. As 734 cepas de S. typhimurium foram classificadas em 65 biotipos com o predomínio dos biotipos 1a com 28,34%, 1b com 29,84% e 9bi com 18,25%. Com relação a S. agona, o biotipo 1a com 87,16% representou entre nós o clone amplamente disseminado. Foram encontradas freqüências baixas de cepas colicinogênicas, entretanto, a colicinotipia parece ser um bom método quando aplicada ao estudo de amostras homogêneas pro

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BERRANG, M. E., J. S. BAILEY, S. F. ALTEKRUSE, et al. "Prevalence, Serotype, and Antimicrobial Resistance of Salmonella on Broiler Carcasses Postpick and Postchill in 20 U.S. Processing Plants†." Journal of Food Protection 72, no. 8 (2009): 1610–15. http://dx.doi.org/10.4315/0362-028x-72.8.1610.

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The objective of this study was to measure the effect of broiler processing on the prevalence, serotype, and antimicrobial resistance profiles of salmonellae. Twenty U.S. commercial processing plants representing eight integrators in 13 states were included in the survey. In each of four replications, 10 carcasses from one flock were collected at rehang and 10 more carcasses were collected at postchill; each carcass was sampled by whole-carcass rinse. Salmonella organisms were isolated from carcass rinses by standard cultural techniques, serotypes were determined, and the resistance to 15 anti

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Lissner, C. R., D. L. Weinstein, and A. D. O'Brien. "Mouse chromosome 1 Ity locus regulates microbicidal activity of isolated peritoneal macrophages against a diverse group of intracellular and extracellular bacteria." Journal of Immunology 135, no. 1 (1985): 544–47. http://dx.doi.org/10.4049/jimmunol.135.1.544.

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Abstract The genotype of a mouse influences whether or not it will survive infection with the agent of murine typhoid, Salmonella typhimurium. The best-characterized murine salmonella response gene is a Chromosome 1 locus designated Ity. Inbred strains of mice that express the Itys allele are unable to contain the net growth of Salmonella typhimurium within their spleens and livers, and usually die early in the infection. By contrast, mice homozygous or heterozygous for the Ityr allele are able to control the net multiplication of Salmonella typhimurium within these organs. The Ity gene also a

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Salih, Shahlaa M., Manhal F. A. Albarghash, and Saddam Y. D. Joubori. "Immune Enhancing Effect of Lactobacillus acidophilus and Lactobacillus gasseri in Mice Infected with Salmonella typhimurium." Journal of Biotechnology Research Center 8, no. 3 (2014): 70–75. http://dx.doi.org/10.24126/jobrc.2014.8.3.365.

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This study was carried out to assess the protective immune effect of mixed culture of Lactobacillus acidophilus and Lactobacillus gasseri in mice infected with Salmonella typhimurium. Parameters of evaluation were total and absolute count of leukocyte and phagocytosis. Fifteen albino mice divided into five groups and designated as follows: CG used as negative control, SG was infected with 0.1 ml Salmonella typhimurium 2.5×107 cfu/ml and used as a positive control, AC was treated with 0.1ml Lactobacillus acidophilus 1×109 cfu/ml and infected with Salmonella typhimurium 2.5×107 cfu/ml, GG was do

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SCHERER, KATHRIN, ISTVÁN SZABÓ, UWE RÖSLER, BERND APPEL, ANDREAS HENSEL, and KARSTEN NÖCKLER. "Time Course of Infection with Salmonella Typhimurium and Its Influence on Fecal Shedding, Distribution in Inner Organs, and Antibody Response in Fattening Pigs." Journal of Food Protection 71, no. 4 (2008): 699–705. http://dx.doi.org/10.4315/0362-028x-71.4.699.

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This is the first longitudinal study conducted over the entire 5-month fattening period in pigs to investigate the infection dynamics of Salmonella Typhimurium and the association between antibody response and the prevalence of these bacteria in feces. A total of 16 weaning pigs were infected with Salmonella Typhimurium DT104 followed by clinical examination and blood and fecal sampling until slaughter 138 days postinoculation. To investigate fecal shedding rates and distribution patterns of Salmonella in internal organs regarding premortem stress, one group of swine was transported before sla

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Gulig, Paul A. "Virulence plasmids of Salmonella typhimurium and other salmonellae." Microbial Pathogenesis 8, no. 1 (1990): 3–11. http://dx.doi.org/10.1016/0882-4010(90)90003-9.

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Šišák, F., H. Havlíčková, R. Karpíšková, and I. Rychlík. "Prevalence of Salmonellae and their resistance to antibiotics in slaughtered pigs in the Czech Republic." Czech Journal of Food Sciences 22, No. 6 (2011): 230–36. http://dx.doi.org/10.17221/3428-cjfs.

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Salmonella prevalence was assessed in 816 pigs from fifteen herds which were slaughtered in ten slaughterhouses from June 2001 to December 2002. No Salmonellae were isolated in pigs from eight herds in four slaughterhouses. Salmonella prevalence in pigs originating from the other seven herds ranged from 2.0% to 12.0%. The most frequent site of Salmonella isolation was caecum (2.45%). This finding is statistically significant (P &lt; 0.01) as compared to those obtained with mesenteric lymph nodes (0.73%) and carcass swabs (0.12%). Salmonellae were not found in samples from the environments

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DANYLUK, MICHELLE D., TONG ZHAO, and MICHAEL P. DOYLE. "Competitive Inhibition Bacteria of Bovine Origin against Salmonella Serovars." Journal of Food Protection 70, no. 8 (2007): 1804–10. http://dx.doi.org/10.4315/0362-028x-70.8.1804.

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Studies were conducted to isolate bacteria inhibitory to Salmonella enterica serovar Typhimurium definitive type (DT) 104 in vitro from cattle not carrying Salmonella and to determine the inhibitory activity of the isolated bacteria through competitive growth in cattle feces artificially contaminated with Salmonella Typhimurium DT104 and S. enterica serovar Newport. Fecal samples (108) were obtained from dairy and beef cows. S. enterica serovars were isolated from 9.25% of the samples and included Salmonella Newport (4), Salmonella Bareilly (1), Salmonella Mbandaka (1), Salmonella Montevideo (

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ZHENG, RUISHENG, TONG ZHAO, YEN-CON HUNG, and KOUSHIK ADHIKARI. "Evaluation of Bactericidal Effects of Phenyllactic Acid on Escherichia coli O157:H7 and Salmonella Typhimurium on Beef Meat." Journal of Food Protection 82, no. 12 (2019): 2016–22. http://dx.doi.org/10.4315/0362-028x.jfp-19-217.

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ABSTRACT Bactericidal effects of various concentrations of phenyllactic acid on Shiga toxin–producing Escherichia coli (STEC), including E. coli O157:H7, O26:H11, O103:H2, and O121:H19, and on Salmonella Typhimurium DT104 in pure culture and microplates assays were studied. Beef cuts were surface sprayed with phenyllactic acid or lactic acid for inactivation of E. coli O157:H7 and Salmonella Typhimurium. The 1.5% phenyllactic acid inactivated all inoculated E. coli O157:H7, O26:H11, O103:H2, and O121:H19 and Salmonella Typhimurium DT104 (&gt;6-log reduction) within 1 min of contact at 21°C

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GOODRIDGE, C., L. GOODRIDGE, D. GOTTFRIED, P. EDMONDS, and J. C. WYVILL. "A Rapid Most-Probable-Number–Based Enzyme-Linked Immunosorbent Assay for the Detection and Enumeration of Salmonella Typhimurium in Poultry Wastewater." Journal of Food Protection 66, no. 12 (2003): 2302–6. http://dx.doi.org/10.4315/0362-028x-66.12.2302.

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The rapid and accurate detection and enumeration of low levels of Salmonella Typhimurium in food processing facilities are critical components of an effective hazard analysis critical control point program. The objective of this study was to develop a rapid (8 h) most probable number (MPN)–enzyme-linked immunosorbent assay (ELISA) for the detection and enumeration of Salmonella Typhimurium in wastewater. The specific objectives were to (i) characterize poly- and monoclonal Salmonella Typhimurium–specific antibodies in order to select the most specific and sensitive antibody for Salmonella Typh

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Cordelia Enyanwu, Ofaka,. "Plasmid Profile of Environmental and Clinical Isolates of Multidrug Resistant Salmonella Typhimurium from Patients Attending General Hospital Asokoro, Abuja and Environ." TEXILA INTERNATIONAL JOURNAL OF PUBLIC HEALTH 11, no. 2 (2023): 78–88. http://dx.doi.org/10.21522/tijph.2013.11.02.art009.

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Plasmid is isolated from Salmonella typhimurium, an enteric bacterium responsible for gastro enteritis. Gastro enteritis remains a major clinical and public health problem all over the world, especially among children in the developing countries of the sub – Sahara Africa. The profiling of plasmid isolate of Salmonella typhimurium involved cultivation, isolation, identification, and characterization. The study aimed at investigating the multidrug resistance of salmonella typhimurium of patients attending General Hospital Asokoro with typhoid fever and the susceptibility of isolates to antibiot

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Giovagnoni, Giulia, Barbara Rossi, Benedetta Tugnoli, et al. "Thymol and Carvacrol Downregulate the Expression of Salmonella typhimurium Virulence Genes during an In Vitro Infection on Caco-2 Cells." Microorganisms 8, no. 6 (2020): 862. http://dx.doi.org/10.3390/microorganisms8060862.

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Salmonella typhimurium is one of the major bacteria responsible for gastroenteritis in humans caused by foodborne pathogens. As pork is one of the main routes of transmission, bioactive compounds used as feed additives may be an important strategy to control Salmonella typhimurium. The aim of this study was to assess the antimicrobial activity of several organic acids and nature identical compounds against Salmonella typhimurium ATCC®® 6994™. Moreover, the effect of sub-lethal concentrations of thymol and carvacrol in counteracting a Salmonella typhimurium in vitro infection on Caco-2 cells wa

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Pezoa, David, Carlos J. Blondel, Fernando A. Amaya, and Carlos A. Santiviago. "Transfer of T6SS_SPI-19 from Salmonella Gallinarum to Salmonella Typhimurium Lacking T6SS_SPI-6 Complements its Colonization Defect in Mice." Polish Journal of Microbiology 72, no. 2 (2023): 215–19. http://dx.doi.org/10.33073/pjm-2023-017.

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Abstract Salmonella genus harbors five Type VI Secretion System (T6SS) gene clusters. The T6SS encoded in SPI-6 (T6SSSPI-6) contributes to Salmonella Typhimurium colonization of chickens and mice, while the T6SS encoded in SPI-19 (T6SSSPI-19) of Salmonella Gallinarum contributes to chicken colonization. Interestingly, the T6SSSPI-19 of Salmonella Gallinarum complemented the defect in chicken colonization of a Salmonella Typhimurium strain that lacks the T6SSSPI-6, suggesting that both T6SSs are interchangeable. Here we show that the transfer of Salmonella Gallinarum T6SSSPI-19 complemented the

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Imre, A., F. Olasz, and B. Nagy. "Development of a pcr system for the characterisation of Salmonella flagellin genes." Acta Veterinaria Hungarica 53, no. 2 (2005): 163–72. http://dx.doi.org/10.1556/avet.53.2005.2.2.

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Analysis of flagellin genes was carried out on strains of Salmonella Typhimurium, Salmonella Hadar, Salmonella Abortusequi, Salmonella Enteritidis and Salmonella Gallinarum serovars, using a PCR system designed in this study. The purpose of these studies was to explore the flagellin genes of biphasic and monophasic Salmonellae for future targeted genetic interventions. The PCR primers were designed for two different structural genes of flagellin (fliC, fljB), for the repressor of fliC (fljA), for the operator region of fliC, and for the invertase system responsible for phase variation in Salmo

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