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Dissertations / Theses on the topic 'Multidrug resistant Salmonella'

Author: Grafiati

Published: 2 June 2025

Last updated: 31 July 2025

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1

Lim, Kelvin Z. "EFFECT OF FLAVOMYCIN (FLAVOPHOSPHOLIPOL) ON THE ACQUISITION AND LOSS OF ANTIMICROBIAL RESISTANCE IN MULTIDRUG-RESISTANT SALMONELLA ENTERICA SEROVAR ENTERITIDIS IN BROILER CHICKENS." The Ohio State University, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=osu1429289203.

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2

LUCARELLI, CLAUDIA. "La multiresistenza in Salmonella: caratterizzazione molecolare di un nuovo clone emergente di Salmonella enterica sierotipo Typhimurium." Doctoral thesis, Università degli Studi di Roma "Tor Vergata", 2009. http://hdl.handle.net/2108/1089.

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Salmonella enterica sierotipo Typhimurium (STM) rappresenta la prevalente causa di gastroenterite trasmessa da alimenti in Italia, con la maggior parte degli isolati con resistenza multipla agli antibiotici, principalmente ad ampicillina (A), cloramfenicolo (C), streptomicina (S), sulfamidici (Su) e tetraciclina (T) (ACSSuT). Un nuovo pattern di resistenza (R-type) ASSuT, mancante della resistenza a C, è recentemente emerso in Italia tra ceppi di STM e della sua variante monofasica, Salmonella enterica subspecie enterica sierotipo S. 4,[5],12:i:– . L’obiettivo principale di questa tesi è sta

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3

VARELA, GUERRERO JORGE ANTONIO 349997, and GUERRERO JORGE ANTONIO VARELA. "Caracterización de integrones y casetes de resistencia a antimicrobianos y amino cuaternarios en cepas de Salmonella aisladas en el Estado de México." Tesis de doctorado, Universidad Autónoma del Estado de México, 2016. http://hdl.handle.net/20.500.11799/67949.

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Salmonella spp, is a public and animal health problem, due to the emergence of multiresistant strains to antimicrobials, this multiresistance has been related to resistance genes that are found in the bacterial chromosome or related with plasmids, transposons and recently to integrons resistance; therefore, the first objective of the study was to determine the phenotypic and genotypic resistance to antibiotics of Salmonella spp. isolated from bovine animals carcasses sacrificed in slaughterhouses of the Center-North of Mexico State. The presence of PSE-1, tetG, qnrS, FloR, STR genes was determ

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4

Centeno, Maria Madalena Gomes Ferreira Lopes. "Influência do uso de fluoroquinolonas no aparecimento de Escherichia coli e Salmonella spp. multirresistentes em vitelos." Bachelor's thesis, Universidade Técnica de Lisboa. Faculdade de Medicina Veterinária, 2010. http://hdl.handle.net/10400.5/2771.

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Dissertação de Mestrado Integrado em Medicina Veterinária<br>Influência do uso de fluoroquinolonas no aparecimento de Escherichia coli e Salmonella spp. multirresistentes em vitelos Neste estudo, avaliou-se a influência da administração de enrofloxacina no leite (50mg/L) e a susceptibilidade dos isolados de Escherichia coli e Salmonella spp. obtidos a partir de fezes de vitelos saudáveis (n=106) de uma exploração no Alentejo. A cada vitelo foram recolhidas amostras às 2 (T0, antes da administração da enrofloxacina), às 6 (T1, após 3 administrações de 5 dias consecutivos intervaladas por

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5

Pott, Franziska Ellen [Verfasser]. "Molekulare Grundlagen der ramRA-vermittelten Regulation der multidrug resistance-Effluxpumpe AcrAB-TolC bei Salmonella und Citrobacter freundii / Franziska Ellen Pott." Aachen : Shaker, 2011. http://d-nb.info/1069050466/34.

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6

Targant, Hayette. "L’îlot de multirésistance aux antibiotiques, Salmonella Genomic Island 1 (SGI1) : variabilité, diffusion inter - espèces et implication dans la virulence." Thesis, Lyon 1, 2010. http://www.theses.fr/2010LYO10157/document.

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Les salmonelles sont l’une des premières causes d’infections bactériennes d’origine alimentaire. Depuis le début des années 1990, l’isolement de salmonelles multirésistantes aux antibiotiques a considérablement accru avec l’émergence des souches épidémiques Salmonella Typhimurium DT104 qui sont, pour la majorité, résistantes à l’ampicilline, le chloramphénicol, la streptomycine, les sulfamides et les tétracyclines. Les gènes codant ces résistances sont regroupés sur un intégron complexe de classe 1 nommé In104, localisé lui-même sur un îlot génomique de 43 kb désigné Salmonella Genomic Island

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7

de, Souza Andrei Itajahy Secundo. "Análise dos perfis genômicos e de resistência à antimicrobianos de estirpes de Salmonella Heidelberg /." Jaboticabal, 2019. http://hdl.handle.net/11449/192610.

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Orientador: Angelo Berchieri Junior<br>Resumo: Salmonella Heidelberg (SH) é um dos sorovares do gênero Salmonella capaz de infectar tanto seres humanos quanto animais. Surtos infecciosos em seres humanos estão relacionados principalmente à ingestão de produtos de origem avícola e o tratamento é realizado com o uso de antimicrobianos. Entretanto, estas drogas também são utilizadas na produção avícola como melhoradores de desempenho, o que resulta em resistência bacteriana em SH, já relatada em literatura. Com isso, o objetivo deste estudo foi caracterizar 62 isolados de SH quanto ao fenótipo de

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8

Arjyal, Amit. "Clinical studies on enteric fever." Thesis, University of Oxford, 2014. http://ora.ox.ac.uk/objects/uuid:7b82ceef-96de-4159-adcf-a06dc14c581a.

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I performed two randomised controlled trials (RCTs) to determine the best treatments for enteric fever in Kathmandu, Nepal, an area with a high proportion of nalidixic acid resistant S. Typhi and S. Paratyphi A isolates. I recruited 844 patients with suspected enteric fever to compare chloramphenicol versus gatifloxacin. 352 patients were culture confirmed. 14/175 patients treated with chloramphenicol and 12/177 patients treated with gatifloxacin experienced treatment failure (HR=0.86 (95% CI 0.40 to 1.86), p=0.70). The median times to fever clearance were 3.95 and 3.90 days, respectively (HR=

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9

CACCIOTTO, PIERPAOLO. "Computational Study on MFP MexA in MexAB-OprM and RND transporter AcrB in AcrAB-TolC Efflux Pumps." Doctoral thesis, Università degli Studi di Cagliari, 2015. http://hdl.handle.net/11584/266788.

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In the last years we have assisted to the steady increase in the number of bacterial strains showing resistance to a wide variety of unrelated drugs, a phenomenon known as Multi-Drug Resistance (MDR). Molecular efflux pumps are among the major contributors to MDR, recognizing and expelling several noxious compounds into the external medium. In Gram-negative bacteria, efflux pumps of the Resistance Nodulation-cell Division (RND) superfamily are particularly relevant for the occurrence of MDR. These machineries are composed of a homotrimeric inner membrane drug/proton RND antiporter, a hom

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10

Kruger, Tersia. "Molecular characterization of multidrug-resistant Salmonella Isangi in hospitalized patients." Thesis, 2008. http://hdl.handle.net/10539/5429.

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ABSTRACT Extended-spectrum beta-lactamase (ESBL)-producing Salmonella enterica serotype Isangi has emerged as a common Salmonella serotype affecting mainly children in hospitals throughout South Africa. Between 2000 and 2002, 279 S. Isangi isolates from single infection episodes were referred from 21 hospitals in 5 provinces to the Enteric Diseases Reference Unit of the National Institute for Communicable Diseases of South Africa. All isolates were subjected to antibiotic susceptibility testing and three disk-diffusion methods confirmed ESBL-production in 273 isolates. PCR and nucleoti

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11

TSAI, WEI-CHEN, and 蔡維真. "Interaction of Cationic Antimicrobial Peptides with Multidrug-Resistant Salmonella enterica serovar Choleraesuis." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/26078570832286524089.

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12

"Fluid Shear Force Regulates the Pathogenesis-Related Stress Responses of Invasive Multidrug Resistant Salmonella Typhimurium 5579." Master's thesis, 2016. http://hdl.handle.net/2286/R.I.38663.

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abstract: The emergence of invasive non-Typhoidal Salmonella (iNTS) infections belonging to sequence type (ST) 313 are associated with severe bacteremia and high mortality in sub-Saharan Africa. Distinct features of ST313 strains include resistance to multiple antibiotics, extensive genomic degradation, and atypical clinical diagnosis including bloodstream infections, respiratory symptoms, and fever. Herein, I report the use of dynamic bioreactor technology to profile the impact of physiological fluid shear levels on the pathogenesis-related responses of ST313 pathovar, 5579. I show that cultu

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13

Yu, Yuan-Chieh, and 游媛絜. "Antibacterial Effects of Antimicrobial peptides in combination with antibiotics against Multidrug-Resistant Salmonella enterica serovar Choleraesuis." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/56568935666582169831.

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14

Huang, Yu-Hsuan, and 黃于軒. "Optimization of Cationic Antimicrobial Peptides to Enhance their Antibacterial Activity against Multidrug-Resistant Salmonella enterica serovar Choleraesuis." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/e7ndtu.

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15

Hartmann, Faye. "The use of standard and molecular epidemiological techniques to investigate an outbreak of multidrug-resistant Salmonella anatum in horses." 1995. http://catalog.hathitrust.org/api/volumes/oclc/34068048.html.

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16

Wu, Mu-Tze, and 吳慕澤. "The Use of High Performance Liquid Chromatography- Electrochemical (HPLC-EC) Detection for Analysis of Amino Acid Utilization to Identify Multidrug-Resistant (MDR) Salmonella Typhimurium." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/62795812389744109679.

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碩士<br>國立中興大學<br>微生物暨公共衛生學研究所<br>102<br>Multidrug-resistant (MDR) Salmonella infections become emerging issues in humans and animals. However, the traditional microbiological methods to determine MDR strains, which are time-consuming, need to apply disk diffusion or minimum inhibitory concentration methods to test resistance of ampicillin, chloramphenicol, streptomycin, sulfonamides and tetracyclines (ACSSuT). Amino acids are major biochemical molecules to maintain bacterial survival, as they participate in DNA replication and synthesis of virulent proteins. The objective of this study was to e

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17

"The Effect of Fluid Shear on Pathogenesis-related Phenotypes of Non-typhoidal Salmonella enterica serovar Typhimurium ST313 A130." Master's thesis, 2017. http://hdl.handle.net/2286/R.I.45590.

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abstract: In sub-Saharan Africa, an invasive form of nontyphoidal Salmonella (iNTS) belonging to sequence type (ST)313 has emerged as a major public health concern causing widespread bacteremia and mortality in children with malaria and adults with HIV. Clinically, ST313 pathovars are characterized by the absence of gastroenteritis, which is commonly found in “classical” nontyphoidal Salmonella (NTS), along with multidrug resistance, pseudogene formation, and chromosome degradation. There is an urgent need to understand the biological and physical factors that regulate the disease causing prop

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18

Silveira, Leonor de Sousa Dâmaso da. "Phenotypic and genotypic characterization of Salmonella spp. isolates in Portugal." Doctoral thesis, 2019. http://hdl.handle.net/10362/91582.

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Salmonellosis remains one of the most common causes of gastrointestinal infection in the world, and represents a considerable burden in developing and developed countries. As such, Salmonella surveillance is essential to control infection and decrease the economic burden of the disease, and the Portuguese National Institute of Health has been working in this field roughly since 1950. Considering the importance of the surveillance of Salmonella enterica, the main goal of this work was to contribute to a better knowledge of relevant serovars circulating in Portugal, either the most common, or s

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19

Tchamdja, Eyaba. "Etude épidémiologique de la résistance de Salmonella Dublin, Campylobacter spp et Escherichia coli et l’usage des antimicrobiens chez les veaux de lait du Québec." Thèse, 2018. http://hdl.handle.net/1866/22608.

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