keyword
MENU ▼
Read by QxMD icon Read
search

Penicillin susceptible staphylococcus

keyword
https://www.readbyqxmd.com/read/29319754/identification-and-antimicrobial-suceptibility-profile-of-bacteria-causing-bovine-mastitis-from-dairy-farms-in-pelotas-rio-grande-do-sul
#1
C H Freitas, J F Mendes, P V Villarreal, P R Santos, C L Gonçalves, H L Gonzales, P S Nascente
Mastitis is an inflammatory process of the udder tissue caused mainly by the bacteria Staphylococcus aureus. The indiscriminate use of antibiotics fosters conditions that favor the selection of resistant microorganisms, suppressing at the same time susceptible forms, causing a serious problem in dairy cattle. Given the importance in performing an antibiogram to select the most adequate antimicrobial therapy, the aim of this study was to identify bacteria isolated from cow's milk with mastitis, in dairy farms situated in the city of Pelotas, Rio Grande do Sul, and to determinate the susceptibility profile of these isolates against the antibiotics used to treat this illness...
January 8, 2018: Brazilian Journal of Biology, Revista Brasleira de Biologia
https://www.readbyqxmd.com/read/29258622/nasal-colonization-and-antimicrobial-susceptibility-pattern-of-staphylococcus-aureus-among-pre-school-children-in-ethiopia
#2
Alemayehu Reta, Moges Wubie, Getnet Mekuria
BACKGROUND: Staphylococcus aureus is one of the bacterium that can asymptomatically colonize the human upper respiratory tract (i.e. nose and throat). Carriage of S. aureus, including methicillin resistant S. aureus, is common to children. The aim at this study was to determine the nasal colonization, associated factors and antimicrobial susceptibility patterns of S. aureus isolates among pre-school children in Debre Markos town. METHODS: Institutional-based cross sectional study was conducted...
December 19, 2017: BMC Research Notes
https://www.readbyqxmd.com/read/29250963/high-prevalence-of-staphylococcus-aureus-nasal-carriage-among-children-in-szolnok-hungary
#3
Krisztina Laub, Adrienn Tóthpál, Eszter Kovács, Judit Sahin-Tóth, Andrea Horváth, Szilvia Kardos, Orsolya Dobay
We collected nasal samples from 1,390 healthy 3-7 years old children in Szolnok city, Hungary, in 2012. We detected 476 Staphylococcus aureus isolates from 474 children. In two occasions, two different S. aureus were isolated, based on hemolysis type and pulsed-field gel electrophoresis pattern. S. aureus carriage rate was calculated to be 34.1% similar to others studies. Male gender was found to be a risk factor for carriage by statistical analysis. Altogether, four methicillin-resistant S. aureus (MRSA) strains were detected by mecA polymerase chain reaction, which means 0...
December 18, 2017: Acta Microbiologica et Immunologica Hungarica
https://www.readbyqxmd.com/read/29217934/the-prevalence-of-antibiotic-resistant-diarrhogenic-bacterial-species-in-surface-waters-south-eastern-nigeria
#4
Stanley C Onuoha
Background: This study assessed the bacteriological qualities of surface waters in Afikpo, between April and September 2016. Methods: Surface water samples were collected from three streams for bacteriological analysis. Bacteria species were isolated using standard microbiological and biochemical techniques. Antibiotic susceptibility study was carried out using Kirby Bauer disc diffusion method. Results: The result of the mean heterotrophic bacteria count from the streams showed that Okpu stream had 209...
July 2017: Ethiopian Journal of Health Sciences
https://www.readbyqxmd.com/read/29214760/prevalence-of-blaz-gene-and-performance-of-phenotypic-tests-to-detect-penicillinase-in-staphylococcus-aureus-isolates-from-japan
#5
Yoshiko Takayama, Takashi Tanaka, Koko Oikawa, Naoki Fukano, Mieko Goto, Takashi Takahashi
Guidelines recommend that clinical laboratories perform phenotypic tests (nitrocefin-based test and penicillin 10-U [P10] or 1-U [P1] zone edge tests) to detect penicillinase in Staphylococcus aureus isolates. This study aimed to assess the prevalence of blaZ encoding penicillinase and perform various phenotypic tests in S. aureus isolates from Japan. We prospectively collected 200 methicillin-susceptible S. aureus isolates from June 2015 to January 2016 and performed six phenotypic tests (nitrocefin-based test, P10 zone edge test/P10 diffusion test, penicillin 2-U [P2] zone edge test/P2 diffusion test, and cloverleaf test) on each sample...
March 2018: Annals of Laboratory Medicine
https://www.readbyqxmd.com/read/29209290/enterotoxigenicity-and-antimicrobial-resistance-of-staphylococcus-aureus-isolated-from-retail-food-in-china
#6
Wei Wang, Zulqarnain Baloch, Tao Jiang, Cunshan Zhang, Zixin Peng, Fengqin Li, Séamus Fanning, Aiguo Ma, Jin Xu
Staphylococcus aureus is one of the most common causes of zoonotic agent in the world, which are attributable to the contamination of food with enterotoxins. In this study, a total of 1,150 S. aureus isolates were cultured from 27,000 retail foods items from 203 cities of 24 provinces in China in 2015 and were test for antimicrobial susceptibility. Additionally, the role of the genes responsible for the staphylococcal enterotoxins (SEA to SEE), methicillin resistance (mecA) and the toxigenic capabilities were also assessed...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/29203102/antimicrobial-resistance-and-underlying-mechanisms-in-staphylococcus-aureus-isolates
#7
Ebru Şebnem Yılmaz, Özkan Aslantaş
OBJECTIVE: To investigate the antimicrobial susceptibility of 97 clinical Staphylococcus aureus (S. aureus) strains against 14 antimicrobials and corresponding resistance mechanisms. METHODS: The antimicrobial susceptibility of the isolates was determined using a disk diffusion method and antimicrobial resistance genes were screened by polymerase chain reaction. Mutations responsible for ciprofloxacin and rifampicin resistance were investigated by polymerase chain reaction and DNA sequencing...
November 2017: Asian Pacific Journal of Tropical Medicine
https://www.readbyqxmd.com/read/29201229/antimicrobial-resistance-and-prevalence-of-cvfb-sek-and-seq-genes-among-staphylococcus-aureus-isolates-from-paediatric-patients-with-bloodstream-infections
#8
Bing-Shao Liang, Yan-Mei Huang, Yin-Shuang Chen, Hui Dong, Jia-Liang Mai, Yong-Qiang Xie, Hua-Min Zhong, Qiu-Lian Deng, Yan Long, Yi-Yu Yang, Si-Tang Gong, Zhen-Wen Zhou
Staphylococcus aureus (S. aureus) is one of the most frequently isolated pathogens in neonatal cases of early and late-onset sepsis. Drug resistance profiles and carriage of toxin genes may affect the treatment and outcome of an infection. The present study aimed to determine the antimicrobial resistance patterns and frequencies of the toxin-associated genes conserved virulence factor B (CvfB), staphylococcal enterotoxin Q (SEQ) and staphylococcal enterotoxin K (SEK) among S. aureus isolates recovered from paediatric patients with bloodstream infections (BSIs) in Guangzhou (China)...
November 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29187146/determination-of-antimicrobial-susceptibility-patterns-in-staphylococcus-aureus-strains-recovered-from-patients-at-two-main-health-facilities-in-kabul-afghanistan
#9
Haji Mohammad Naimi, Hamidullah Rasekh, Ahmad Zia Noori, Mohammad Aman Bahaduri
BACKGROUND: Staphylococcus aureus (S. aureus) is a major pathogen implicated in skin and soft tissue infections, abscess in deep organs, toxin mediated diseases, respiratory tract infections, urinary tract infections, post-surgical wound infections, meningitis and many other diseases. Irresponsible and over use of antibiotics has led to an increased presence of multidrug resistant organisms and especially methicillin resistant Staphylococcus aureus (MRSA) as a major public health concern in Afghanistan...
November 29, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/29178841/multiresistant-st59-sccmec-iv-t437-clone-with-strong-biofilm-forming-capacity-was-identified-predominantly-in-mrsa-isolated-from-chinese-children
#10
Xin Yang, Suyun Qian, Kaihu Yao, Lijuan Wang, Yingchao Liu, Fang Dong, Wenqi Song, Jinghui Zhen, Wei Zhou, Hong Xu, Hongyan Zheng, Wenting Li
BACKGROUND: This study aimed to investigate the clinical and molecular epidemiology and biofilm formation of Staphylococcus aureus (SA) isolated from pediatricians in China. METHODS: SA strains were isolated from Beijing Children's hospital from February 2016 to January 2017. Isolates were typed by multilocus sequence typing (MLST), spa and SCCmec typing (for Methicillin-resistant SA [MRSA] only). Antimicrobial susceptibility testing was performed by agar dilution method except sulphamethoxazole/trimethoprim (E-test method)...
November 25, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/29161942/trends-in-incidence-and-resistance-patterns-of-staphylococcus-aureus-bacteremia
#11
Elina Jokinen, Janne Laine, Reetta Huttunen, Outi Lyytikäinen, Risto Vuento, Jaana Vuopio, Jaana Syrjänen
BACKGROUND: Staphylococcus aureus bacteremia (SAB) causes a significant burden on the population. Several infection control measures have been implemented in Pirkanmaa county to combat a local epidemic with methicillin-resistant Staphylococcus aureus (MRSA). We aimed to study the epidemiology of SAB and antibiotic resistance of S. aureus and the possible influence of improved infection control. METHODS: Register data from 2005 to 2015 were retrospectively analysed to study the antimicrobial susceptibility, the incidence and mortality in SAB in a population-based setting...
January 2018: Infectious Diseases
https://www.readbyqxmd.com/read/29145786/cephalexin-susceptibility-breakpoint-for-veterinary-isolates-clinical-laboratory-standards-institute-revision
#12
Mark G Papich, Cindy Lindeman
The Clinical and Laboratory Standards Institute (CLSI) uses cephalothin as the class representative for testing veterinary isolates for susceptibility to other first-generation cephalosporins, including cephalexin. We examined replacing cephalothin with cephalexin because cephalexin is used more often clinically. Bacterial isolates were obtained from dogs and cats from a national surveillance program. CLSI testing methods were used to determine the MIC for 4 cephalosporins used in veterinary medicine. Cephalexin clinical breakpoints for canine isolates were established by using published pharmacokinetic data and Monte Carlo simulations to calculate the probability of target attainment (PTA)...
November 1, 2017: Journal of Veterinary Diagnostic Investigation
https://www.readbyqxmd.com/read/29132926/molecular-epidemiology-of-%C3%AE-lactamase-production-in-penicillin-susceptible-staphylococcus-aureus-under-high-susceptibility-conditions
#13
Takashi Matono, Maki Nagashima, Kazuhisa Mezaki, Ayano Motohashi, Satoshi Kutsuna, Kayoko Hayakawa, Norio Ohmagari, Mitsuo Kaku
Little is known about the prevalence of β-lactamase production in penicillin-susceptible Staphylococcus aureus isolates under high-susceptibility conditions. We analyzed S. aureus isolates with penicillin G minimum inhibitory concentration (MIC) ≤ 0.12 μg/ml that were recovered from in-/outpatients (n = 108) between 2016 and 2017 in Japan. β-Lactamase production was detected by nitrocefin-based and Clinical and Laboratory Standards Institute penicillin zone edge testing and blaZ PCR. All isolates were categorized as having penicillin G MIC ≤0...
November 10, 2017: Journal of Infection and Chemotherapy: Official Journal of the Japan Society of Chemotherapy
https://www.readbyqxmd.com/read/29103614/membrane-microdomain-disassembly-inhibits-mrsa-antibiotic-resistance
#14
Esther García-Fernández, Gudrun Koch, Rabea M Wagner, Agnes Fekete, Stephanie T Stengel, Johannes Schneider, Benjamin Mielich-Süss, Sebastian Geibel, Sebastian M Markert, Christian Stigloher, Daniel Lopez
A number of bacterial cell processes are confined functional membrane microdomains (FMMs), structurally and functionally similar to lipid rafts of eukaryotic cells. How bacteria organize these intricate platforms and what their biological significance is remain important questions. Using the pathogen methicillin-resistant Staphylococcus aureus (MRSA), we show here that membrane-carotenoid interaction with the scaffold protein flotillin leads to FMM formation, which can be visualized using super-resolution array tomography...
October 26, 2017: Cell
https://www.readbyqxmd.com/read/29099691/phylogenetic-distribution-and-expression-of-a-penicillin-binding-protein-homologue-ear-and-its-significance-in-virulence-of-staphylococcus-aureus
#15
Vineet K Singh, Robert P Ring, Vijay Aswani, Mary E Stemper, Jennifer Kislow, Zhan Ye, Sanjay K Shukla
PURPOSE: Staphylococcus aureus is an opportunistic human pathogen that can cause serious infections in humans. A plethora of known and putative virulence factors are produced by staphylococci that collectively orchestrate pathogenesis. Ear protein (Escherichia coli ampicillin resistance) in S. aureus is an exoprotein in COL strain, predicted to be a superantigen, and speculated to play roles in antibiotic resistance and virulence. The goal of this study was to determine if expression of ear is modulated by single nucleotide polymorphisms in its promoter and coding sequences and whether this gene plays roles in antibiotic resistance and virulence...
November 3, 2017: Journal of Medical Microbiology
https://www.readbyqxmd.com/read/29093105/trends-in-antibiotic-susceptibility-in-staphylococcus-aureus-in-boston-massachusetts-2000-2014
#16
Sanjat Kanjilal, Mohamad R Abdul Sater, Maile Thayer, Georgia K Lagoudas, Soohong Kim, Paul C Blainey, Yonatan H Grad
The rate of infection by methicillin-resistant S. aureus (MRSA) has declined over the past decade, but it is unclear whether this represents a decline in S. aureus infections overall. To evaluate trends in the annual rates of infection by S. aureus subtype and mean antibiotic resistance, we conducted a 15-year retrospective observational study at two tertiary care institutions in Boston, MA of 31 753 adult inpatients with S. aureus isolated from clinical specimens. We inferred gain and loss of methicillin resistance through genome sequencing of 180 isolates from 2016...
November 1, 2017: Journal of Clinical Microbiology
https://www.readbyqxmd.com/read/29091195/ceftaroline-efficacy-against-high-mic-clinical-staphylococcus-aureus-isolates-in-an-in-vitro-hollow-fibre-infection-model
#17
Renu Singh, Mashal Almutairi, Richard A Alm, Sushmita D Lahiri, Maryann San Martin, April Chen, Jane E Ambler
Objectives: The current CLSI and EUCAST clinical susceptible breakpoint for 600 mg q12h dosing of ceftaroline (active metabolite of ceftaroline fosamil) for Staphylococcus aureus is ≤1 mg/L. Efficacy data for S. aureus infections with ceftaroline MIC ≥2 mg/L are limited. This study was designed to generate in-depth pharmacokinetic/pharmacodynamics (PK/PD) understanding of S. aureus isolates inhibited by ≥ 2 mg/L ceftaroline using an in vitro hollow-fibre infection model (HFIM)...
October 1, 2017: Journal of Antimicrobial Chemotherapy
https://www.readbyqxmd.com/read/29081626/ceftriaxone-for-the-treatment-of-methicillin-susceptible-staphylococcus-aureus-bacteremia-a-case-series
#18
Rachel Amanda Lowe, Katie Elizabeth Barber, Jamie Leigh Wagner, Allison Miriam Bell-Harlan, Kayla Renay Stover
Methicillin-susceptible Staphylococcus aureus (MSSA) causes 45% of S. aureus bloodstream infections (BSI) and is the most important cause of BSI-associated death. The standard of care therapy is an anti-staphylococcal penicillin or cefazolin, but dosing frequencies for these agents are often infeasible; multiple daily doses tie up infusion lines and are impractical for outpatient antibiotic infusion. Ceftriaxone represents a promising alternative, with once daily dosing and a short infusion time. Currently, treatment with ceftriaxone for invasive MSSA infections is infrequent, with minimal data supporting the clinical utility of ceftriaxone for MSSA BSI...
July 2017: Journal of Pharmacology & Pharmacotherapeutics
https://www.readbyqxmd.com/read/29071076/burden-of-bacterial-upper-respiratory-tract-pathogens-in-school-children-of-nepal
#19
Sangita Thapa, Shishir Gokhale, Annavarapu Laxminarasimha Sharma, Lokendra Bahadur Sapkota, Shamshul Ansari, Rajendra Gautam, Sony Shrestha, Puja Neopane
INTRODUCTION: Respiratory tract infections are one of the most common human infections in all age group and important cause of mortality and morbidity worldwide. Most bacterial upper respiratory tract infections are vaccine preventable. This study aimed to determine the prevalence of carrier state of bacterial upper respiratory tract pathogens among school children. It also aimed to study their antibiograms. METHODS: The specimen from posterior pharyngeal wall and tonsils were collected from 204 participants on calcium alginate coated swabs (HiMedia)...
2017: BMJ Open Respiratory Research
https://www.readbyqxmd.com/read/29050434/microbial-loads-and-antibiotic-resistance-patterns-of-staphylococcus-aureus-in-different-types-of-raw-poultry-based-meat-preparations
#20
Laura Buzón-Durán, Rosa Capita, Carlos Alonso-Calleja
The hygiene status of raw chicken-meat preparations from retail outlets in North-Western Spain was investigated. Microbial counts (aerobic plate counts (APCs), psychrotrophs, Enterobacteriaceae, fecal coliforms, enterococci, pseudomonads, fluorescent pseudomonads, yeasts and molds, and Staphylococcus aureus) were determined for minced meat, hamburgers, nuggets, white sausages, red sausages, escalope, and roll-ups. S. aureus isolates were tested for susceptibility to twenty antimicrobials of veterinary and human clinical significance (disc diffusion method, CLSI)...
September 1, 2017: Poultry Science
keyword
keyword
104950
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"