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Journal articles on the topic 'Antimicrobial susceptibility of S'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

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1

Nowak, Jennifer, Thamarai Schneiders, Harald Seifert, and Paul G. Higgins. "The Asp20-to-Asn Substitution in the Response Regulator AdeR Leads to Enhanced Efflux Activity of AdeB in Acinetobacter baumannii." Antimicrobial Agents and Chemotherapy 60, no. 2 (2015): 1085–90. http://dx.doi.org/10.1128/aac.02413-15.

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ABSTRACTOverexpression of the resistance-nodulation-cell division-type efflux pump AdeABC is often associated with multidrug resistance inAcinetobacter baumanniiand has been linked to mutations in the genes encoding the AdeRS two-component system. In a previous study, we reported that the Asp20→Asn amino acid substitution in the response regulator AdeR is associated withadeBoverexpression and reduced susceptibility to the antimicrobials levofloxacin, tigecycline, and trimethoprim-sulfamethoxazole. To further characterize the effect of the Asp20→Asn substitution on antimicrobial susceptibility,

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Kim, Sollip, Soo Jin Yoo, and Jeonghyun Chang. "Importance of Susceptibility Rate of ‘the First’ Isolate: Evidence of Real-World Data." Medicina 56, no. 10 (2020): 507. http://dx.doi.org/10.3390/medicina56100507.

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Background and objectives: For proper antimicrobial therapy, cumulative antibiograms should be representative of geographic region and be accurate. Clinical and Laboratory Standards Institute (CLSI) guidelines recommend that only the first isolates (FI) of a species per patient are used when reporting cumulative antibiograms. However, >50% of hospitals in the United States report antibiograms of all isolates. We compared antibiograms from the FI with those from total isolates (TI). Materials and Methods: Antimicrobial data of all isolates identified in the Microbiology unit of Ilsan Paik Ho

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Beuron, Daniele C., Cristina S. Cortinhas, Bruno G. Botaro, et al. "Risk factors associated with the antimicrobial resistance of Staphylococcus aureus isolated from bovine mastitis." Pesquisa Veterinária Brasileira 34, no. 10 (2014): 947–52. http://dx.doi.org/10.1590/s0100-736x2014001000004.

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The objective of this study was to evaluate herd management practices and mastitis treatment procedures as risk factors associated with Staphylococcus aureus antimicrobial resistance. For this study, 13 herds were selected to participate in the study to evaluate the association between their management practices and mastitis treatment procedures and in vitro antimicrobial susceptibility. A total of 1069 composite milk samples were collected aseptically from the selected cows in four different periods over two years. The samples were used for microbiological culturing of S. aureus isolates and

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Salmanov, Aidyn G., Volodymyr O. Shkorbotun, and Yaroslav V. Shkorbotun. "ANTIMICROBIAL RESISTANCE OF STAPHYLOCOCCUS AUREUS CAUSING OF SURGICAL SITE INFECTIONS IN EAR, NOSE AND THROAT SURGERY." Wiadomości Lekarskie 72, no. 2 (2019): 154–58. http://dx.doi.org/10.36740/wlek201902102.

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Introduction: Staphylococcus aureus is one of the major pathogens that causes of surgical site infection (SSI). Scant information is available on the occurrence and antimicrobial susceptibility of S. aureus in patients with SSI in Ear, Nose and Throat (ENT) surgery. The aim: To assess the activity of antimicrobials against S.aureus, isolated from patients with SSI by the ENT departments of Kyiv hospitals. Materials and methods: A total of 516 S. aureus isolates from of patients with SSI in ENT surgery. Antimicrobial susceptibility of S. aureus were determined, using automated microbiology anal

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Hussain, Muhammad Shahbaz, Zafar Majeed, and Mazhar Hussain. "ANTIMICROBIAL SUSCEPTIBILITY." Professional Medical Journal 23, no. 12 (2016): 1581–86. http://dx.doi.org/10.29309/tpmj/2016.23.12.1820.

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Infections occurring more than 48 hours after admission in hospital are usuallyconsidered as nosocomial infections. Patients in ICUs are at a higher risk of acquiring thisinfection than those in non-critical areas. The total length of stay increased from three days tonineteen days for clinical procedures. Increased antimicrobial resistance in such cases makesincrease in mortality and morbidity. The ICU infection rates is five to ten times higher than HAIs inward patients. ICU acquired infections are major health problem globally, in developing countrieslike Pakistan. The microorganisms that ar

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KELMAN, ALINA, YEE-ANN SOONG, NICOLE DUPUY, et al. "Antimicrobial Susceptibility of Staphylococcus aureus from Retail Ground Meats." Journal of Food Protection 74, no. 10 (2011): 1625–29. http://dx.doi.org/10.4315/0362-028x.jfp-10-571.

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The aim of this study was to characterize antimicrobial resistance in Staphylococcus aureus, including methicillin-resistant S. aureus (MRSA), recovered from raw retail meat products purchased in the Washington, D.C., area. From March to August 2008, 694 samples of ground beef (n = 198), ground pork (n = 300), and ground turkey (n = 196) were collected by random sampling from stores of three grocery chains. In total, 200 S. aureus isolates (29%) were recovered by direct plating. When tested for susceptibility to 22 antimicrobials, 69% of the S. aureus isolates were resistant to tetracycline, 2

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Giormezis, Nikolaos, Assimina Rechenioti, Konstantinos Doumanas, Christos Sotiropoulos, Fotini Paliogianni, and Fevronia Kolonitsiou. "Bacteriophage Resistance, Adhesin’s and Toxin’s Genes Profile of Staphylococcus aureus Causing Infections in Children and Adolescents." Microorganisms 13, no. 3 (2025): 484. https://doi.org/10.3390/microorganisms13030484.

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Staphylococcus aureus is a common pathogen, often recovered from children’s infections. Βiofilm formation, antimicrobial resistance and production of adhesins and toxins contribute to its virulence. As resistance to antimicrobials rises worldwide, alternative therapies like bacteriophages (among them the well-studied Bacteriophage K) can be helpful. The aim of this study was to determine the bacteriophage and antimicrobial susceptibility and the presence of virulence genes among S. aureus from infections in children and adolescents. Eighty S. aureus isolates were tested for biofilm formation a

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Santos, Renata P., Fernando N. Souza, Ana Claudia D. Oliveira, et al. "Molecular Typing and Antimicrobial Susceptibility Profile of Staphylococcus aureus Isolates Recovered from Bovine Mastitis and Nasal Samples." Animals 10, no. 11 (2020): 2143. http://dx.doi.org/10.3390/ani10112143.

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In the present study, we aimed to determine the antimicrobial resistance and molecular typing of Staphylococcus aureus recovered from transient and persistent intramammary infections and nares/muzzles in dairy cows. We investigated the antimicrobial resistance of 189 S. aureus strains using a broad antimicrobial susceptibility profile. Furthermore, 107 S. aureus isolates were strain-typed using staphylococcal protein-A (spa) typing. A large proportion of strains exhibited multidrug resistance to antimicrobials, including resistance to critically important antimicrobials, although no methicilli

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Pereira, Richard V., Heather M. Fritz, Kathy Toohey-Kurth, and Kristin A. Clothier. "Salmonella enterica Serovar Dublin from Cattle in California from 1993 to 2019: Characterization and Analysis of Antimicrobial Resistance Diversity." Antibiotics 13, no. 1 (2023): 22. http://dx.doi.org/10.3390/antibiotics13010022.

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For this study, antimicrobial susceptibility data for Salmonella enterica subsp. enterica serovar Dublin (S. Dublin)—a well-known cattle-adapted pathogen with current concerns for multidrug resistance—were recovered from cattle at the California Animal Health and Food Safety Laboratory System (CAHFS) over the last three decades (1993–2019) and were evaluated using tools to capture diversity in antimicrobial resistance. For this purpose, minimum inhibitory concentration (MIC) testing was conducted for 247 clinical S. Dublin isolates. Antimicrobial resistance (AMR) profiles revealed a predominan

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Abbas Alwan, Izdihar, Ahmed Kareem Kadhim AL-Wasmee, and Mohanad O. Al-Jubouri. "Isolation and identification of bacteria from Coptodon zillii (Gervais, 1848) and study of some virulence factors in Al-Diwaniya River/middle of Iraq." Sumer 4 8, CSS 4 (2023): 1–9. http://dx.doi.org/10.21931/rb/css/2023.08.04.03.

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This study was conceded to examining the occurrence of possible pathogenic species of bacterium in C. zillii in the Al-Diwaniya River. A total of 100 fishes of C. zillii, during the period (April) 2021 till (March) 2022. Bacteria were recognized using the VITEK 2 system and designated biochemical tests. Species were recognized with different percentages in C. zillii, P. luteola, S. thalpophilum, S. lentus, and A. sobria. Antimicrobial susceptibility test of 16 antimicrobials, which are (Ampicillin, piperacillin/tazobactam, amikacin, cefazolin, Ceftriaxone, Ertapenem, Gentamycin, cefoxitin, cip

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Komyagina, T. M., A. S. Tryapochkina, N. M. Alyabieva, A. V. Lazareva, Yu V. Gorinova, and O. I. Simonova. "Population structure and genetic characteristics of Streptococcus pneumoniae isolates from children with chronic respiratory diseases." Clinical Microbiology and Antimicrobial Chemotherapy 26, no. 4 (2024): 480–86. https://doi.org/10.36488/cmac.2024.4.480-486.

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Objective. To study the population and genetic structure of S. pneumoniae isolated from children with cystic fibrosis (CF) and congenital malformations of the bronchi and lungs (CM) over the period 2011 to 2021, their serotype diversity in pre-vaccination and post-vaccination periods and susceptibility to antimicrobials. Materials and Methods. A total of 140 S. pneumoniae isolates (during 2011-2021) from respiratory samples of patients with CM or CF were included in the study. For all isolates serotypes, antimicrobial susceptibility, resistance genes to β-lactams and macrolides, and sequence t

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Costa, Geraldo Márcio da, Núbia Aparecida Ribeiro, Maysa Serpa Gonçalves, Juliana Rosa da Silva, Dircéia Aparecida da Costa Custódio, and Gláucia Frasnelli Mian. "Antimicrobial susceptibility profile of Streptococcus agalactiae strains isolated from bovine mastitis." Brazilian Journal of Veterinary Research and Animal Science 58 (June 3, 2021): e178109. http://dx.doi.org/10.11606/issn.1678-4456.bjvras.2021.178109.

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Bovine mastitis is the most important disease of dairy herds worldwide. Its main etiologic agents are bacteria, including Streptococcus agalactiae. The importance of this agent in bovine mastitis is because it is highly contagious and has a high impact on the occurrence of clinical mastitis cases and in the increase of the bulk milk somatic cell counts. The dry cow therapy and the treatment of the clinical mastitis cases stand out among the measures to control intramammary infections in cows. However, these strategies require knowledge about the antimicrobial susceptibility of the causal micro

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Abdulsamad, Muhanad Abdullah, Nahed R. Saad, Maroua Abderrahmane Salhi, Abdulmutalib Alabeed Allaq, Ahmed Badi, and Akalpita Tendulkar. "Antimicrobial Susceptibility Profiles of Staphylococcus aureus, Streptococcus pyogenes and Bacillus subtilis Various Antibiotics." International Journal of Advancement in Life Sciences Research 07, no. 03 (2024): 140–51. https://doi.org/10.31632/ijalsr.2024.v07i03.013.

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The rise in bacterial resistance to antibiotics necessitates the development of new antimicrobials. Pathogenic microorganisms from hospitals, communities, and environments pose significant health risks exacerbated by the uncontrolled use of antibiotics, highlighting the urgent need for innovative solutions. To address antibiotic resistance, analysed the antimicrobial activity of Bacillus subtilis, Staphylococcus aureus, and Streptococcus pyogenes using biochemical assays with some antibiotics: tetracycline, erythromycin, trimethoprim, rifampicin, hygromycin, and streptomycin. The study employe

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Abebe, Rahmeto, and hagere Hatiya. "Antimicrobial susceptibility and resistance patterns of Staphylococcus aureus isolated from mastitic cows in Hawassa city and its suburbs, southern Ethiopia." Journal of Research in Veterinary Sciences 5, no. 1 (2025): 1. https://doi.org/10.5455/jrvs.20241216112919.

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Background/Aim: Bovine mastitis, an inflammation of the mammary gland, frequently affects dairy cattle, reducing milk production and causing economic strain on farmers. It is mainly caused by various bacteria, particularly Staphylococcus aureus, which often exhibits resistance to multiple antimicrobials. The excessive use of antibiotics on dairy farms has resulted in the rise of multidrug-resistant (MDR) strains of S. aureus, complicating mastitis treatment. This study was aimed to isolate S. aureus from mastitic cows and evaluate its antimicrobial susceptibility. Methods: The was conducted fr

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Salgado, Brianna, Katherine KuKanich, and Brian Lubbers. "PSI-25 development of local Kansas E. coli UTI antibiograms to improve antimicrobial stewardship in companion animal medicine." Journal of Animal Science 97, Supplement_2 (2019): 241. http://dx.doi.org/10.1093/jas/skz122.424.

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Abstract Urinary tract infections are common in dogs, but rare in cats. Antimicrobial susceptibility testing of urine isolates is required to determine optimal antimicrobial therapy, but empirical antimicrobial guidelines are needed while culture is pending or if testing is declined. Antibiograms are summaries of local susceptibility trends that assist clinicians in selecting empirical antimicrobial therapy. Antibiograms were developed from E. coli feline (N = 138) and canine (N = 640) urinary isolates submitted by the KSU Veterinary Health Center and private veterinary practices from 2013–201

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Wataradee, Sirirat, Thanasak Boonserm, Sukuma Samngamnim, and Kittisak Ajariyakhajorn. "Characterization of Virulence Factors and Antimicrobial Susceptibility of Streptococcus agalactiae Associated with Bovine Mastitis Cases in Thailand." Animals 14, no. 3 (2024): 447. http://dx.doi.org/10.3390/ani14030447.

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Streptococcus agalactiae is a contagious pathogen that causes bovine mastitis. The ability of S. agalactiae to cause widespread mastitis relies on bacterial virulence factors. In this study, we detected 10 virulence determinants associated with mastitis pathogenicity using conventional PCR. The antimicrobial susceptibility of 100 S. agalactiae isolates from 13 Thai dairy herds was assessed using the Kirby–Bauer disk diffusion susceptibility test. All strains had at least three virulence factors responsible for invasion, adhesion, and infection (fbsB, bibA, and cfb, respectively). The predomina

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Makolo, Daniel, O. D. Yusuf, S. S. Yusuf, and S. R. Ummulkhair. "Phenotypic Identification and Antimicrobial Susceptibility Profiles of Pathogenic Staphylococcus aureus from Nigerian Naira Notes Circulating in Bwari Metropolis, Abuja, Nigeria." Sahel Journal of Life Sciences FUDMA 3, no. 1 (2025): 407–13. https://doi.org/10.33003/sajols-2025-0301-50.

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Staphylococcus aureus is a major pathogen responsible for a wide range of infections in both community and healthcare settings. This research was aimed to isolate and phenotypically characterize pathogenic Staphylococcus aureus from Nigerian naira notes and determine their antimicrobial susceptibility profiles. The isolation and characterization of the isolates were carried out following standard bacteriological techniques. Additionally, the antimicrobial susceptibility profiles of the isolates were assessed using the Kirby-Bauer disc diffusion method. Out of the 40 naira note samples collecte

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Golden, Alyssa R., Melanie R. Baxter, Ross J. Davidson, et al. "Comparison of antimicrobial resistance patterns in Streptococcus pneumoniae from respiratory and blood cultures in Canadian hospitals from 2007–16." Journal of Antimicrobial Chemotherapy 74, Supplement_4 (2019): iv39—iv47. http://dx.doi.org/10.1093/jac/dkz286.

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Abstract Objectives To compare the epidemiology and antimicrobial susceptibility patterns of Streptococcus pneumoniae collected from respiratory and blood culture samples in Canada between 2007 and 2016. Methods S. pneumoniae strains were obtained from Canadian hospitals as part of the ongoing national surveillance study, CANWARD. Isolates were serotyped using the Quellung method. Antimicrobial susceptibility testing was performed using the CLSI broth microdilution method. MDR and XDR were defined as resistance to three or more and five or more classes of antimicrobials, respectively. Results

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Потехин, Андрей, Andrey Potehin, Ольга Олейникова, and Ol'ga Oleynikova. "Antimicrobial susceptibility of porcine bacterial pathogens." Russian veterinary journal 2019, no. 2 (2019): 52–55. http://dx.doi.org/10.32416/article_5cd16d095a8428.91465538.

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A retrospective review of antimicrobial susceptibility to the fluoroquinolones and potentiated sulfonamides of 120 isolates of the most typical porcine bacterial pathogens isolated from animals of different age groups from 2009 to 2019 at FGBI «ARRIAH» was carried out. According to the results, P. multocida, H. parasuis are highly susceptible to enrofloxacin, which can be used for empirical treatment of pasteurellosis and Glasser's disease. A. pleuropneumoniae and S. suis are also susceptible to enrofloxacin, so it can be recommended for the treatment of A. pleuropneumonia and streptococcosis.

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Geraldes, Catarina, Cláudia Verdial, Eva Cunha, et al. "Evaluation of a Biocide Used in the Biological Isolation and Containment Unit of a Veterinary Teaching Hospital." Antibiotics 10, no. 6 (2021): 639. http://dx.doi.org/10.3390/antibiotics10060639.

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Hospital-acquired infections (HAIs) are a rising problem worldwide, and the best way of coping with them is through infection tracking and surveillance systems, combined with prevention strategies, namely efficient disinfection protocols, that employ various biocides. However, increasing reports about reductions in biocide susceptibility and the development of cross-resistance to antimicrobials emphasize the need for identifying the factors influencing biocide efficiency. In this study, 29 bacterial isolates (n = 3 E. coli, n = 2 Pseudomonas spp., n = 23 Enterococcus spp., and n = 1 Staphyloco

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Dias, Juliana Alves, Carla Augusta de Menezes, Maria Aparecida Vasconcelos Paiva Brito, Carla Christine Lange, and Ronaldo Barros de Queiroz. "Antimicrobial resistance profile of Staphylococcus spp. isolates in cattle herds from Western Amazon." Semina: Ciências Agrárias 43, no. 3 (2022): 1355–64. http://dx.doi.org/10.5433/1679-0359.2022v43n3p1355.

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Staphylococcus is one of the most frequent etiological agents of bovine mastitis, causing economic losses to milk farming. This study aimed to describe the milk production and management practices in 15 herds located in three microregions of the State of Rondônia and to identify the antimicrobial resistance profile of 97 isolates of the genus Staphylococcus from these herds. The isolates were subjected to antimicrobial susceptibility tests using the agar diffusion method. Twenty-nine S. aureus isolates were selected to determine their minimum inhibitory concentration (MIC). In the farms studie

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Gortari Castillo, Lihuel, Kevin Denis Steffen, Daniel Buldain, Maria Laura Marchetti, and Nora Mestorino. "Susceptibilidad antimicrobiana de Staphylococcus spp. aislados de mastitis caprina en sistemas de producción semiintensivo y extensivo." Spei Domus 20, no. 2 (2025): 1–15. https://doi.org/10.16925/2382-4247.2024.02.05.

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Introduction: Goat milk production has experienced sustained growth in recent years. Subclinical mastitis, a disease caused mainly by Staphylococcus spp., has a high economic and health impact at a global level. However, there is little information on the antimicrobial susceptibility of these pathogens, a fundamental aspect of successful therapy. The objectives of this study were to determine the occurrence of subclinical mastitis due to Staphylococcus spp. in semi-intensive and extensive systems and to evaluate the antibacterial susceptibility in S. aureus and scn isolated from milk of goats

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Rocha Barros, Rosana, Ana Carla Baumgratz, Karla Rodrigues Miranda, Heidi Pauer, Felipe Lopes Teixeira, and Geraldo Renato De Paula. "Mastitis-Associated Bacterial Etiologies and Antimicrobial Susceptibility Profiles." Ensaios e Ciência: Ciências Biológicas, Agrárias e da Saúde 28, no. 4 (2024): 532–35. https://doi.org/10.17921/1415-6938.2024v28n4p532-535.

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Cattle mastitis is common in dairy farms, affecting animal welfare and the profitability of production. Mastitis contributes to antimicrobial agent consumption in animal and agriculture sectors, which might impact the occurrence and dissemination of multidrug-resistant microorganisms. To overcome this scenario, it is important to identify the etiology and treat it correctly, which does not occur in the majority of farms in Brazil. This study identified the etiology, by MALDI-TOF MS, and analyzed the antimicrobial susceptibility profile of bacterial isolates recovered from milk samples of 122 a

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VN, Unegbu. "Prevalence and Antimicrobial Susceptibility Pattern of MicroOrganisms Associated with Ocular Infections." Open Access Journal of Ophthalmology 7, no. 2 (2022): 1–10. http://dx.doi.org/10.23880/oajo-16000247.

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Background and Objective: Ocular infections in man are the contamination and invasion of ocular tissues by microorganisms leading to the breakdown of the natural defense mechanisms of the eyes. This study was undertaken to determine the prevalence and antimicrobial susceptibility pattern of microorganisms associated with ocular infections. Methods: A hospital based cross-sectional study was conducted at four (4) tertiary hospitals in Abia State. Ocular specimens were collected from 500 patients. Subsequent identification was done based on morphology and biochemical tests. Susceptibility patter

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Jabra-Rizk, M. A., T. F. Meiller, C. E. James, and M. E. Shirtliff. "Effect of Farnesol on Staphylococcus aureus Biofilm Formation and Antimicrobial Susceptibility." Antimicrobial Agents and Chemotherapy 50, no. 4 (2006): 1463–69. http://dx.doi.org/10.1128/aac.50.4.1463-1469.2006.

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ABSTRACT Staphylococcus aureus is among the leading pathogens causing bloodstream infections able to form biofilms on host tissue and indwelling medical devices and to persist and cause disease. Infections caused by S. aureus are becoming more difficult to treat because of increasing resistance to antibiotics. In a biofilm environment particularly, microbes exhibit enhanced resistance to antimicrobial agents. Recently, farnesol was described as a quorum-sensing molecule with possible antimicrobial properties. In this study, the effect of farnesol on methicillin-resistant and -susceptible strai

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Lemma, Fikirte, Haile Alemayehu, Andrew Stringer, and Tadesse Eguale. "Prevalence and Antimicrobial Susceptibility Profile of Staphylococcus aureus in Milk and Traditionally Processed Dairy Products in Addis Ababa, Ethiopia." BioMed Research International 2021 (July 16, 2021): 1–7. http://dx.doi.org/10.1155/2021/5576873.

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Staphylococcus aureus is a contagious pathogen that can cause various diseases in both humans and animals. Antimicrobial-resistant S. aureus is becoming an extremely important global health problem. A cross-sectional study was conducted from December 2019 to May 2020 to assess the occurrence of S. aureus and its antimicrobial susceptibility profiles in milk and traditionally processed dairy products in selected subcities of Addis Ababa. A total of 255 dairy product samples (175 raw milk and 80 traditionally processed dairy products) were collected from farms and retail markets. Samples were cu

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Videla, Ricardo, David Bemis, and Stephen Kania. "Molecular characterization and antimicrobial susceptibility of canine Staphylococcus pseudintermedius isolates from the United States (P6063)." Journal of Immunology 190, no. 1_Supplement (2013): 141.1. http://dx.doi.org/10.4049/jimmunol.190.supp.141.1.

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Abstract Staphylococcus pseudintermedius, the primary cause of canine pyoderma, is therapeutically challenging due to a high, and increasing, rate of resistance to antibiotics. The objectives of this study were: to investigate the genetic diversity within canine S. pseudintermedius isolates in the United States and to characterize their antimicrobial susceptibility profile. Samples from 221 dogs were obtained from veterinary diagnostic facilities located in different regions of the United States. Genetic groups were generated based on Pulsed-field gel electrophoresis (PFGE) and Multi-Locus Seq

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Šlosárková, Soňa, Kateřina Nedbalcová, Jaroslav Bzdil, et al. "Antimicrobial Susceptibility of Streptococci Most Frequently Isolated from Czech Dairy Cows with Mastitis." Annals of Animal Science 19, no. 3 (2019): 679–94. http://dx.doi.org/10.2478/aoas-2019-0015.

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AbstractThe aim was to investigate the antimicrobial susceptibility of most frequently isolated streptococci from Czech dairy herds. A total of 3,719 quarter milk samples were collected and cultivated between January 2017 and June 2018 from cows with clinical or subclinical mastitis from 112 farms. Only one isolate of each species, collected from the same farm per six-month period, was included in the susceptibility testing. The susceptibilities of Streptococcus uberis (163 isolates) and S. dysgalactiae (25 isolates) to 10 antimicrobials (penicillin – PEN, amoxicillin/clavulanic acid – AMC, ce

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SASAKI, Y., A. IKEDA, K. ISHIKAWA, et al. "Prevalence and antimicrobial susceptibility of Salmonella in Japanese broiler flocks." Epidemiology and Infection 140, no. 11 (2012): 2074–81. http://dx.doi.org/10.1017/s0950268812000039.

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SUMMARYThis study determined the prevalence and antimicrobial susceptibility of Salmonella isolated from broiler flocks in Japan. Caecal dropping samples were collected from 288 broiler flocks between November 2007 and February 2010. Salmonella was prevalent in 248 (86·1%) broiler flocks. The top three serovars were S. Infantis, S. Manhattan and S. Schwarzengrund. S. Infantis was found in all regions tested in this study. However, S. Manhattan and S. Schwarzengrund were frequently found only in the western part of Japan. High antimicrobial resistance rates were observed against oxytetracycline

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Calayag, Alyzza Marie B., Kenneth W. Widmer, and Windell L. Rivera. "Antimicrobial Susceptibility and Frequency of bla and qnr Genes in Salmonella enterica Isolated from Slaughtered Pigs." Antibiotics 10, no. 12 (2021): 1442. http://dx.doi.org/10.3390/antibiotics10121442.

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Salmonella enterica is known as one of the most common foodborne pathogens worldwide. While salmonellosis is usually self-limiting, severe infections may require antimicrobial therapy. However, increasing resistance of Salmonella to antimicrobials, particularly fluoroquinolones and cephalosporins, is of utmost concern. The present study aimed to investigate the antimicrobial susceptibility of S. enterica isolated from pork, the major product in Philippine livestock production. Our results show that both the qnrS and the blaTEM antimicrobial resistance genes were present in 61.2% of the isolate

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Spierer, Oriel, Darlene Miller, and Terrence P. O’Brien. "Comparative activity of antimicrobials against Pseudomonas aeruginosa, Achromobacter xylosoxidans and Stenotrophomonas maltophilia keratitis isolates." British Journal of Ophthalmology 102, no. 5 (2018): 708–12. http://dx.doi.org/10.1136/bjophthalmol-2017-311751.

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Background/aimsAchromobacter xylosoxidans and Stenotrophomonas maltophilia are emerging corneal pathogens, which are closely related to Pseudomonas aeruginosa, and have intrinsic resistance to many commonly available antimicrobials. The purpose of this study is to compare the in vitro efficacy of 12 antimicrobial agents against A. xylosoxidans, S. maltophilia and P. aeruginosa isolates recovered from clinical cases of keratitis.MethodsRecovered corneal isolates (n=58) were identified and extracted from the Microbiology Data Bank of the Bascom Palmer Eye Institute. Comparative in vitro minimum

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Nagshetty, Kavita, Shivannavar T. Channappa, and Subhashchandra M. Gaddad. "Antimicrobial susceptibility of Salmonella Typhi in India." Journal of Infection in Developing Countries 4, no. 02 (2009): 070–73. http://dx.doi.org/10.3855/jidc.109.

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Background: Typhoid fever continues to remain a major public health problem, especially in regions such as Gulbarga, due to poor sanitation and personal hygiene. Gulbarga region is often prone to enteric fever outbreaks and is an endemic region of typhoid fever. Enteric fever caused by Salmonella Typhi has not been adequately explored in this region. Methodology: A total of 95 isolates of S. Typhi collected from different clinical and environmental sources were tested for antimicrobial susceptibility according to the CLSI guidelines. MIC of resistant isolates to various antibiotics was perform

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Chamlakhorn, Wattanasak, Patchara Phuektes, Seri Khang-Air, and Sunpetch Angkititrakul. "Prevalence, genetic characterization, and antimicrobial resistance of Salmonella isolated from meat goats in the Northeastern region of Thailand." Veterinary Integrative Sciences 19, no. 3 (2021): 363–78. http://dx.doi.org/10.12982/vis.2021.031.

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This study aimed to determine the prevalence, genotypic diversity, and antimicrobial resistance pattern of Salmonella isolated from meat goats in the Northeastern region of Thailand. A total of 1,014 rectal swabs were collected from 30 meat goat farms during April to November, 2018. Salmonella was isolated and identified according to the International Organization for Standardization protocol (ISO-6579:2002/AMD:2017) and serotyped using a slide agglutination test following the Kauffmann-White scheme. An antimicrobial susceptibility test to determine minimal inhibitory concentration (MIC) of 12

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Chung, Hae-Sun, and Miae Lee. "Different Antimicrobial Susceptibility Testing Methods to Determine Vancomycin Susceptibility and MIC for Staphylococcus aureus with Reduced Vancomycin Susceptibility." Diagnostics 12, no. 4 (2022): 845. http://dx.doi.org/10.3390/diagnostics12040845.

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The methods and results obtained using commercialized automation systems used for antimicrobial susceptibility testing are not entirely consistent. Therefore, we evaluated different antimicrobial susceptibility testing methods to determine vancomycin susceptibility and minimum inhibitory concentration (MIC) for Staphylococcus aureus with reduced vancomycin susceptibility (SA-RVS). A total of 128 clinical isolates of S. aureus were tested, including 99 isolates showing an MIC of ≥2 µg/mL using the VITEK2 system (VITEK2). Antimicrobial susceptibility tests were performed using the Sensititre sys

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Xu, Xuebin, Silpak Biswas, Guimin Gu, Mohammed Elbediwi, Yan Li, and Min Yue. "Characterization of Multidrug Resistance Patterns of Emerging Salmonella enterica Serovar Rissen along the Food Chain in China." Antibiotics 9, no. 10 (2020): 660. http://dx.doi.org/10.3390/antibiotics9100660.

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Salmonella spp. are recognized as important foodborne pathogens globally. Salmonella enterica serovar Rissen is one of the important Salmonella serovars linked with swine products in numerous countries and can transmit to humans by food chain contamination. Worldwide emerging S. Rissen is considered as one of the most common pathogens to cause human salmonellosis. The objective of this study was to determine the antimicrobial resistance properties and patterns of Salmonella Rissen isolates obtained from humans, animals, animal-derived food products, and the environment in China. Between 2016 a

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Riordan, James T., Arunachalam Muthaiyan, Wayne Van Voorhies, et al. "Response of Staphylococcus aureus to Salicylate Challenge." Journal of Bacteriology 189, no. 1 (2006): 220–27. http://dx.doi.org/10.1128/jb.01149-06.

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ABSTRACT Growth of Staphylococcus aureus with the nonsteroidal anti-inflammatory salicylate reduces susceptibility of the organism to multiple antimicrobials. Transcriptome analysis revealed that growth of S. aureus with salicylate leads to the induction of genes involved with gluconate and formate metabolism and represses genes required for gluconeogenesis and glycolysis. In addition, salicylate induction upregulates two antibiotic target genes and downregulates a multidrug efflux pump gene repressor (mgrA) and sarR, which represses a gene (sarA) important for intrinsic antimicrobial resistan

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Abdulsalam Khaleel, Raghad, Narjes Alfuraiji, Balsam Waleed Hussain, Maadh Fawzi Nassar, and Farnoosh Ebrahimzadeh. "Methicillin-resistant Staphylococcus aureus in urinary tract infections; prevalence and antimicrobial resistance." Journal of Renal Injury Prevention 11, no. 1 (2021): e8-e8. http://dx.doi.org/10.34172/jrip.2022.08.

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Introduction: The newly-launched strain of the Staphylococcus aureus, methicillin-resistant S. aureus, is considered the most emerging bacterium in-hospital infections globally. Objectives: The current research focused on the prevalence and virulence features of methicillin-resistant S. aureus (MRSA) bacteria recovered from urinary tract infections (UTIs) cases. Patients and Methods: A total of 710 urine specimens were taken from hospitalized patients who suffered from UTIs. S. aureus was recovered from urine specimens using the microbial culture. S. aureus antimicrobial susceptibility was ass

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Sweeney, Michael, Cynthia Lindeman, Lacie Johansen, et al. "Antimicrobial susceptibility of Actinobacillus pleuropneumoniae, Pasteurella multocida, Streptococcus suis, and Bordetella bronchiseptica isolated from pigs in the United States and Canada, 2011 to 2015." Journal of Swine Health and Production 25, no. 3 (2017): 106–20. http://dx.doi.org/10.54846/jshap/1002.

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Objective: To report the susceptibility to veterinary antimicrobial agents of Actinobacillus pleuropneumoniae, Pasteurella multocida, Streptococcus suis, and Bordetella bronchiseptica isolated from pigs in the United States and Canada from 2011 to 2015. Materials and methods: In vitro broth microdilution susceptibility testing for minimal inhibitory concentration values were performed using 10 antimicrobial agents (ampicillin, ceftiofur, danofloxacin, enrofloxacin, florfenicol, penicillin, tetracycline, tilmicosin, trimethoprim-sulfamethoxazole, and tulathromycin) with Actinobacillu pleuropneu

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Hamasalih, Rebwar, Ahmed Hassan, and Rastee Saeed. "Plasmid Profile and Transformation Efficiency in Staphylococcus aureus isolated from different clinical specimens." Pakistan Journal of Medical & Health Sciences 14, no. 3 (2020): 1584–93. https://doi.org/10.5281/zenodo.4284071.

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Staphylococcus aureus a common cause of many diseases related to human health. It colonizes the skin and mucosal surfaces, and the most consistent site from which this bacterium can be cultured in the anterior nares. A total of 261 patients’ samples taken were received from the different hospitals in Erbil city from July 2019 to January2020. Using various methods for suspected S. aureus identifications. The antimicrobial susceptibility test results against 16 antimicrobials showed variable susceptibility patterns. The transformation efficiency was calculated for ten more resist isolates

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Trivedi, Mahendra Kumar, Alice Branton, Dahryn Trivedi, Gopal Nayak, Sambhu Charan Mondal, and Snehasis Jana. "Antibiogram of Biofield-Treated Shigella boydii: Global Burden of Infections." Science Journal of Clinical Medicine 4, no. 6 (2015): 121–26. https://doi.org/10.11648/j.sjcm.20150406.12.

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Bacillary dysentery and acute gastroenteritis caused by infection of Shigella species are major public health burden in India and its neighboring countries. Emergence of antimicrobial resistance threatens to render current treatments ineffective. The current study was attempted to investigate the effect of biofield treatment on Shigella boydii (S. boydii) with respect of antimicrobial susceptibility assay, biochemical characteristics and biotyping. The American Type Culture Collection (ATCC 9207) strain of S. boydii was used in this experiment. The study was conducted in revived and lyophilize

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Trivedi, Mahendra Kumar, Alice Branton, Dahryn Trivedi, Gopal Nayak, Sambhu Charan Mondal, and Snehasis Jana. "Antibiogram of Biofield-Treated Shigella boydii: Global Burden of Infections." Science Journal of Clinical Medicine 4, no. 6 (2015): 121–26. https://doi.org/10.5281/zenodo.191272.

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Bacillary dysentery and acute gastroenteritis caused by infection of Shigella species are major public health burden in India and its neighboring countries. Emergence of antimicrobial resistance threatens to render current treatments ineffective. The current study was attempted to investigate the effect of biofield treatment on Shigella boydii (S. boydii) with respect of antimicrobial susceptibility assay, biochemical characteristics and biotyping. The American Type Culture Collection (ATCC 9207) strain of S. boydii was used in this experiment. The study was conducted in revived and lyophilize

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Sweet, Ryan, Catherine Booth, Kathryn Gotts, Stephen F. Grove, Paul A. Kroon, and Mark Webber. "Comparison of Antibacterial Activity of Phytochemicals against Common Foodborne Pathogens and Potential for Selection of Resistance." Microorganisms 11, no. 10 (2023): 2495. http://dx.doi.org/10.3390/microorganisms11102495.

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Antimicrobial resistance is now commonly observed in bacterial isolates from multiple settings, compromising the efficacy of current antimicrobial agents. Therefore, there is an urgent requirement for efficacious novel antimicrobials to be used as therapeutics, prophylactically or as preservatives. One promising source of novel antimicrobial chemicals is phytochemicals, which are secondary metabolites produced by plants for numerous purposes, including antimicrobial defence. In this report, we compare the bioactivity of a range of phytochemical compounds, testing their ability to directly inhi

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Sweeney, Michael, Lacie Gunnett, Dipu Mohan Kumar, et al. "Antimicrobial susceptibility of Actinobacillus pleuropneumoniae, Bordetella bronchiseptica, Pasteurella multocida, and Streptococcus suis isolated from diseased pigs in the United States and Canada, 2016 to 2020." Journal of Swine Health and Production 30, no. 3 (2022): 130–44. http://dx.doi.org/10.54846/jshap/1282.

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Objective: To report the in vitro susceptibility to veterinary antimicrobial agents of Actinobacillus pleuropneumoniae, Bordetella bronchiseptica, Pasteurella multocida, and Streptococcus suis isolated from diseased pigs in the United States and Canada from 2016 to 2020. Materials and methods: In vitro broth microdilution susceptibility testing for minimal inhibitory concentration values were performed using ten antimicrobial agents (ampicillin, ceftiofur, danofloxacin, enrofloxacin, florfenicol, penicillin, tetracycline, tilmicosin, trimethoprim-sulfamethoxazole, and tulathromycin) with A ple

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Yurin, D. V., V. V. Nevzorova, A. A. Balbutskaya, and S. S. Belimova. "Antimicrobial activity of enrofloxacin in vitro." International bulletin of Veterinary Medicine 2 (2020): 99–103. http://dx.doi.org/10.17238/issn2072-2419.2020.2.99.

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Continuouse use of enrofloxacin contributes to emergence of enrofloxacin-resistant mi-crobial resistance, isolated and reported late-ly. In this study we deal with the spread of resistance of enrofloxacin among pathogenic organisms, infecting animals. The suscepti-bility to enrofloxacin was studied in standard disc diffusion assay. We studied 437 bacteri-al isolates in total. Salmonella dublin and Sal-monella typhimurium showed the highest suscepti-bility to enrofloxacin (100%); Salmonella enter-itidis and Salmonella choleraesuis proved a bit less susceptibility (95% and 94,7%). 5% of S. enter

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Portis, Ellen, Cynthia Lindeman, Lacie Johansen, and Gillian Stoltman. "Antimicrobial susceptibility of porcine Pasteurella multocida, Streptococcus suis, and Actinobacillus pleuropneumoniae from the United States and Canada, 2001 to 2010." Journal of Swine Health and Production 21, no. 1 (2013): 30–41. http://dx.doi.org/10.54846/jshap/756.

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Objective: To provide data on the in vitro antimicrobial susceptibility of three bacterial respiratory disease pathogens isolated from swine across the United States and Canada over the period 2001 to 2010. Materials and methods: A total of 1097 Actinobacillus pleuropneumoniae, 2389 Pasteurella multocida, and 2617 Streptococcus suis isolates recovered from diseased or dead swine from North America over a 10-year period were tested for in vitro susceptibility to antimicrobial agents approved for treatment of swine respiratory disease (SRD). Clinical and Laboratory Standards Institute standardiz

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Trivedi, Mahendra Kumar, Shrikant Patil, Harish Shettigar, Sambhu Charan Mondal, and Snehasis Jana. "Antimicrobial Susceptibility Pattern and Biochemical Characteristics of Staphylococcus aureus: Impact of Bio field Treatment." Journal of Microbial & Biochemical Technology 7, no. 4 (2015): 238–41. https://doi.org/10.5281/zenodo.50291.

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<strong>Study background:</strong> Staphylococci are widespread in nature, mainly found on the skin and mucous membranes.Staphylococcus aureus (S. aureus) is the key organism for food poisoning due to massive production of heat stable exotoxins. The current study was attempted to investigate the effect of biofield treatment on antimicrobial susceptibility pattern and biochemical characteristics of S. aureus (ATCC 25923). <strong>Methods:</strong> S. aureus cells were procured from MicroBioLogics in sealed packs bearing the American Type Culture Collection (ATCC 25923) number and stor

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Chavan, Sonal Prakash, Suresh V. Jalgaonkar, Sharmila S. Raut, and Ravindra K. Khadse. "Clinical and antimicrobial profile of Coagulase Negative staphylococci in a tertiary care hospital." International Journal of Research in Medical Sciences 5, no. 8 (2017): 3420. http://dx.doi.org/10.18203/2320-6012.ijrms20173533.

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Background: Coagulase negative staphylococci (CoNS) are gaining importance because of their role as pathogens in certain clinical conditions and their marked resistance to antibiotics. Their species distribution and slime production has important correlation with the antimicrobial susceptibility pattern. Aim of this study was to determine clinically significant CoNS, their species distribution, slime production and antimicrobial susceptibility pattern in a tertiary care hospital.Methods: Identification, speciation and antimicrobial sensitivity testing were performed using standard microbiologi

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SATO, K., T. W. BENNEDSGAARD, P. C. BARTLETT, R. J. ERSKINE, and J. B. KANEENE. "Comparison of Antimicrobial Susceptibility of Staphylococcus aureus Isolated from Bulk Tank Milk in Organic and Conventional Dairy Herds in the Midwestern United States and Denmark." Journal of Food Protection 67, no. 6 (2004): 1104–10. http://dx.doi.org/10.4315/0362-028x-67.6.1104.

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An observational study was conducted to compare the antimicrobial susceptibility patterns of Staphylococcus aureus isolated from bulk tank milk in organic and conventional dairy farms in Wisconsin, United States, and southern Jutland, Denmark. Bulk tank milk samples and data regarding management and production were collected from 30 organic and 30 conventional dairy farms in Wisconsin and 20 organic and 20 conventional dairy farms in Denmark. S. aureus isolates were tested for resistance against 15 antimicrobial agents by semiautomatic microbroth dilution methods in each country. Of the 118 bu

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Kalnins, Nicole Jacqueline, Catriona Croton, Mark Haworth, Justine Gibson, Sarah Leonie Purcell, and Allison Jean Stewart. "A VetCompass Australia Study of Antimicrobial Use in Dog-to-Dog Bite Wounds (1998–2018)." Antibiotics 11, no. 1 (2022): 55. http://dx.doi.org/10.3390/antibiotics11010055.

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Although dog-to-dog bite wounds (DBW) are a common presentation to veterinary clinics, antimicrobial prescribing habits of Australian clinics have not been reported. This study determined the frequency and results of DBW cultures; antimicrobial selection; and importance class of antimicrobials prescribed relative to wound severity, geographic location, or year. A systematic sample of 72,507 patient records was retrieved from the VetCompass Australia database. Records for 1713 dog bite events involving 1655 dogs were reviewed for presenting signs, results of culture and susceptibility testing (

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Farrell, David J., Helio S. Sader, and Ronald N. Jones. "Antimicrobial Susceptibilities of a Worldwide Collection of Stenotrophomonas maltophilia Isolates Tested against Tigecycline and Agents Commonly Used for S. maltophilia Infections." Antimicrobial Agents and Chemotherapy 54, no. 6 (2010): 2735–37. http://dx.doi.org/10.1128/aac.01774-09.

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ABSTRACT Antimicrobial susceptibilities were determined for 1,586 isolates of Stenotrophomonas maltophilia from globally diverse medical centers using the Clinical Laboratory Standards Institute broth microdilution method. The combination trimethoprim-sulfamethoxazole (96.0% of isolates susceptible at ≤2 μg/ml trimethoprim and 38 μg/ml sulfamethoxazole) and tigecycline (95.5% of isolates sussceptible at ≤2 μg/ml) were the only antimicrobials tested with >94% susceptibility in all regions. Susceptibility rates for other commonly used were lower than expected and varied geographically. This i

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