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Australia antibiotic resistance

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https://www.readbyqxmd.com/read/29154717/characterization-of-escherichia-coli-and-salmonella-from-victoria-australia-dairy-farm-environments
#1
Catherine M McAuley, Kate E McMillan, Sean C Moore, Narelle Fegan, Edward M Fox
Safe dairy food production starts at the farm level, with the presence of pathogens on farms potentially impacting the downstream food supply. Studies often commence with looking for pathogens in fecal material of farm animals, predominantly cows; however, pathogens may arise from other on-farm sources. In Australia, few studies have looked at the broader farm environment, particularly in relation to Escherichia coli and Salmonella. The present study characterized the genetic similarity of these pathogens from bovine, ovine, and caprine dairy farm environments and related this to the stx1, stx2, eae, or ehx virulence markers in E...
November 20, 2017: Journal of Food Protection
https://www.readbyqxmd.com/read/29147114/antibiotic-resistant-bacterial-isolates-from-captive-green-turtles-and-in-vitro-sensitivity-to-bacteriophages
#2
Alessandro Delli Paoli Carini, Ellen Ariel, Jacqueline Picard, Lisa Elliott
This study aimed to test multidrug resistant isolates from hospitalised green turtles (Chelonia mydas) and their environment in North Queensland, Australia, for in vitro susceptibility to bacteriophages. Seventy-one Gram-negative bacteria were isolated from green turtle eye swabs and water samples. Broth microdilution tests were used to determine antibiotic susceptibility. All isolates were resistant to at least two antibiotics, with 24% being resistant to seven of the eight antibiotics. Highest resistance rates were detected to enrofloxacin (77%) and ampicillin (69...
2017: International Journal of Microbiology
https://www.readbyqxmd.com/read/29092694/reducing-antibiotic-prescribing-in-australian-general-practice-time-for-a-national-strategy
#3
REVIEW
Christopher B Del Mar, Anna Mae Scott, Paul P Glasziou, Tammy Hoffmann, Mieke L van Driel, Elaine Beller, Susan M Phillips, Jonathan Dartnell
In Australia, the antibiotic resistance crisis may be partly alleviated by reducing antibiotic use in general practice, which has relatively high prescribing rates - antibiotics are mostly prescribed for acute respiratory infections, for which they provide only minor benefits. Current surveillance is inadequate for monitoring community antibiotic resistance rates, prescribing rates by indication, and serious complications of acute respiratory infections (which antibiotic use earlier in the infection may have averted), making target setting difficult...
November 6, 2017: Medical Journal of Australia
https://www.readbyqxmd.com/read/29062959/evaluation-of-fermentation-conditions-triggering-increased-antibacterial-activity-from-a-near-shore-marine-intertidal-environment-associated-streptomyces-species
#4
A L English, A Boufridi, R J Quinn, D I Kurtböke
A near-shore marine intertidal environment-associated Streptomyces isolate (USC-633) from the Sunshine Coast Region of Queensland, Australia, cultivated under a range of chemically defined and complex media to determine optimal parameters resulting in the secretion of diverse array of secondary metabolites with antimicrobial properties against various antibiotic resistant bacteria. Following extraction, fractioning and re-testing of active metabolites resulted in persistent antibacterial activity against Escherichia coli (Migula) (ATCC 13706) and subsequent Nuclear Magnetic Resonance (NMR) analysis of the active fractions confirmed the induction of metabolites different than the ones in fractions which did not display activity against the same bacterial species...
March 2017: Synthetic and Systems Biotechnology
https://www.readbyqxmd.com/read/29020364/antimicrobial-resistance-in-gram-negative-rods-causing-bacteremia-in-hematopoietic-stem-cell-transplant-recipients-intercontinental-prospective-study-of-the-infectious-diseases-working-party-of-the-european-bone-marrow-transplantation-group
#5
Diana Averbuch, Gloria Tridello, Jennifer Hoek, Malgorzata Mikulska, Hamdi Akan, Lucrecia Yanez San Segundo, Thomas Pabst, Tülay Özçelik, Galina Klyasova, Irene Donnini, Depei Wu, Zafer Gülbas, Tsila Zuckerman, Aida Botelho de Sousa, Yves Beguin, Aliénor Xhaard, Emmanuel Bachy, Per Ljungman, Rafael de la Camara, Jelena Rascon, Isabel Ruiz Camps, Antonin Vitek, Francesca Patriarca, Laura Cudillo, Radovan Vrhovac, Peter J Shaw, Tom Wolfs, Tracey O'Brien, Batia Avni, Gerda Silling, Firas Al Sabty, Stelios Graphakos, Marja Sankelo, Henrik Sengeloev, Srinivas Pillai, Susanne Matthes, Frederiki Melanthiou, Simona Iacobelli, Jan Styczynski, Dan Engelhard, Simone Cesaro
Background: This intercontinental study aimed to study gram-negative rod (GNR) resistance in hematopoietic stem cell transplantation (HSCT). Methods: GNR bacteremias occurring during 6 months post-HSCT (February 2014-May 2015) were prospectively collected, and analyzed for rates and risk factors for resistance to fluoroquinolones, noncarbapenem anti-Pseudomonas β-lactams (noncarbapenems), carbapenems, and multidrug resistance. Results: Sixty-five HSCT centers from 25 countries in Europe, Australia, and Asia reported data on 655 GNR episodes and 704 pathogens in 591 patients (Enterobacteriaceae, 73%; nonfermentative rods, 24%; and 3% others)...
November 13, 2017: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/28985369/reducing-early-career-general-practitioners-antibiotic-prescribing-for-respiratory-tract-infections-a-pragmatic-prospective-non-randomised-controlled-trial
#6
Parker Magin, Amanda Tapley, Simon Morgan, Joshua S Davis, Patrick McElduff, Lucy Yardley, Kim Henderson, Anthea Dallas, Lawrie McArthur, Katie Mulquiney, Andrew Davey, Paul Little, Neil Spike, Mieke L van Driel
Background: Inappropriate antibiotic prescription and consequent antibacterial resistance is a major threat to healthcare. Objectives: To evaluate the efficacy of a multifaceted intervention in reducing early career general practitioners' (GPs') antibiotic prescribing for upper respiratory tract infections (URTIs) and acute bronchitis/bronchiolitis. Methods: A pragmatic non-randomized trial employing a non-equivalent control group design nested within an existing cohort study of GP registrars' (trainees') clinical practice...
July 17, 2017: Family Practice
https://www.readbyqxmd.com/read/28969150/patient-demographic-and-clinician-factors-in-antibiotic-prescribing-for-upper-respiratory-tract-infections-in-the-australian-capital-territory-from-2006-2015
#7
Hannah Glenn, Justin Friedman, Alexander A Borecki, Camilla Bradshaw, Nicolas Grandjean-Thomsen, Harrison Pickup, Michelle Yue Yin, Catherine Jun, Mohamed E Abdel-Latif
INTRODUCTION: National antibiotic stewardship programs aim to mitigate rising antimicrobial resistance and associated healthcare costs by promoting safe and appropriate antibiotic prescribing. AIM: This study aimed to analyse patient and clinician demographic factors that may influence antibiotic prescribing for Upper Respiratory Tract Infections (URTIs). Trends in antibiotic prescribing patterns were also analysed over the study period. MATERIALS AND METHODS: This retrospective cross-sectional study analysed data from the Australian National University Medical School Clinical Audit Project database, comprising data collected by students during patient encounters over a two week period each April-May between 2006 and 2015 (excluding 2013)...
August 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28931456/perceptions-of-barriers-to-the-management-of-respiratory-tract-infections-in-general-practice-settings-in-australia
#8
Stephanie Fletcher-Lartey, Rabia Khan
Inappropriate prescribing of antibiotics for the management of respiratory tract infections (RTIs) has contributed to increased prevalence of antibiotic resistance, and this remains a challenge. The aim of this study was to evaluate the effect of general practitioners' (GPs) participation in the Antibiotics: Clinical e-Audit, a quality-improvement activity, on GP self-reported knowledge and practice change, and explored barriers encountered in the management of respiratory tract infections (RTIs). Participants completed a survey at the end of the activity to assess the usefulness of the audit, any reported changes made and barriers encountered to their clinical practice...
September 21, 2017: Australian Journal of Primary Health
https://www.readbyqxmd.com/read/28921905/antibiotic-resistant-escherichia-coli-in-southeastern-australian-pig-herds-and-implications-for-surveillance
#9
L K van Breda, O P Dhungyel, M P Ward
To investigate public health implications of antibiotics to control post-weaning scours, we surveyed 22 commercial pig herds in southeastern Australia. Fifty faecal samples per herd were collected from pre- and post-weaned piglets. Presumptive Escherichia coli isolates were confirmed by MALDI-TOF MS. Isolates (n = 325) were screened for susceptibility to 19 veterinary antibiotics using MIC broth microdilution. All 325 E. coli isolates underwent further testing against 27 antibiotics used in human medicine and were screened for ETEC adhesin and enterotoxin genes (F4 (K88), F5 (K99), F6 (987P), F18, F41, STa, STb, Stx2e and LT) by multiplex PCR...
September 17, 2017: Zoonoses and Public Health
https://www.readbyqxmd.com/read/28910350/phylogeographic-genomic-and-meropenem-susceptibility-analysis-of-burkholderia-ubonensis
#10
Erin P Price, Derek S Sarovich, Jessica R Webb, Carina M Hall, Sierra A Jaramillo, Jason W Sahl, Mirjam Kaestli, Mark Mayo, Glenda Harrington, Anthony L Baker, Lindsay C Sidak-Loftis, Erik W Settles, Madeline Lummis, James M Schupp, John D Gillece, Apichai Tuanyok, Jeffrey Warner, Joseph D Busch, Paul Keim, Bart J Currie, David M Wagner
The bacterium Burkholderia ubonensis is commonly co-isolated from environmental specimens harbouring the melioidosis pathogen, Burkholderia pseudomallei. B. ubonensis has been reported in northern Australia and Thailand but not North America, suggesting similar geographic distribution to B. pseudomallei. Unlike most other Burkholderia cepacia complex (Bcc) species, B. ubonensis is considered non-pathogenic, although its virulence potential has not been tested. Antibiotic resistance in B. ubonensis, particularly towards drugs used to treat the most severe B...
September 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28828759/antibiotics-for-persistent-cough-or-wheeze-following-acute-bronchiolitis-in-children
#11
REVIEW
Gabrielle B McCallum, Erin J Plumb, Peter S Morris, Anne B Chang
BACKGROUND: Bronchiolitis is a common acute respiratory condition with high prevalence worldwide. This clinically diagnosed syndrome is manifested by tachypnoea (rapid breathing), with crackles or wheeze in young children. In the acute phase of bronchiolitis (≤ 14 days), antibiotics are not routinely prescribed unless the illness is severe or a secondary bacterial infection is suspected. Although bronchiolitis is usually self-limiting, some young children continue to have protracted symptoms (e...
August 22, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28818900/genome-sequence-of-an-australian-monophasic-salmonella-enterica-subsp-enterica-typhimurium-isolate-tw-stm6-carrying-a-large-plasmid-with-multiple-antimicrobial-resistance-genes
#12
Mike L Dyall-Smith, Yuhong Liu, Helen Billman-Jacobe
We report the genome sequence of a monophasic Salmonella enterica subsp. enterica Typhimurium strain (TW-Stm6) isolated in Australia that is similar to epidemic multidrug-resistant strains from Europe and elsewhere. This strain carries additional antibiotic and heavy-metal resistance genes on a large (275-kb) IncHI2 plasmid.
August 17, 2017: Genome Announcements
https://www.readbyqxmd.com/read/28811083/phenotypic-chlorhexidine-and-triclosan-susceptibility-in-clinical-staphylococcus-aureus-isolates-in-australia
#13
C Hughes, J Ferguson
Antiseptics such as chlorhexidine gluconate and triclosan are widely used in healthcare settings for both skin antisepsis and decolonisation of Staphylococcus aureus. We determined the minimum inhibitory concentration (MIC) of 198 methicillin susceptible and resistant Staphylococcus aureus clinical isolates to both chlorhexidine and triclosan using an agar dilution method. Of these, 10% (19/198) showed a raised MIC to chlorhexidine and 3% (6/198) showed an elevated MIC to triclosan. The multilocus sequence type (MLST) of each isolate was predicted using a binary method, and although ST93-MRSA-IV was the most common, ST22-MRSA-IV was shown to have statistically higher chlorhexidine MIC values compared with non ST22-MRSA-IV isolates (z = -8...
August 12, 2017: Pathology
https://www.readbyqxmd.com/read/28803587/the-rise-of-methicillin-resistant-staphylococcus-aureus-now-the-dominant-cause-of-skin-and-soft-tissue-infection-in-central-australia
#14
E Macmorran, S Harch, E Athan, S Lane, S Tong, L Crawford, S Krishnaswamy, S Hewagama
This study aimed to examine the epidemiology and treatment outcomes of community-onset purulent staphylococcal skin and soft tissue infections (SSTI) in Central Australia. We performed a prospective observational study of patients hospitalised with community-onset purulent staphylococcal SSTI (n = 160). Indigenous patients accounted for 78% of cases. Patients were predominantly young adults; however, there were high rates of co-morbid disease. Community-associated methicillin-resistant Staphylococcus aureus (CA-MRSA) was the dominant phenotype, accounting for 60% of cases...
October 2017: Epidemiology and Infection
https://www.readbyqxmd.com/read/28748178/community-based-prescribing-for-impetigo-in-remote-australia-an-opportunity-for-antimicrobial-stewardship
#15
Stefanie Jane Oliver, James Cush, Jeanette E Ward
BACKGROUND: To support antibiotic prescribing for both hospital and community-based health professionals working in remote North Western Australia, a multidisciplinary Antimicrobial Stewardship (AMS) Committee was established in 2013. This Committee is usually focused on hospital-based prescribing. A troubling increase in sulfamethoxazole/trimethoprim resistance in Staphylococcus aureus antibiograms from 9 to 18% over 1 year prompted a shift in gaze to community prescribing. WHAT WE DID: Finding a paucity of relevant research, we first investigated contextual factors influencing local prescribing...
2017: Frontiers in Public Health
https://www.readbyqxmd.com/read/28717172/evolution-of-the-pseudomonas-aeruginosa-mutational-resistome-in-an-international-cystic-fibrosis-clone
#16
Carla López-Causapé, Lea Mette Sommer, Gabriel Cabot, Rosa Rubio, Alain A Ocampo-Sosa, Helle Krogh Johansen, Joan Figuerola, Rafael Cantón, Timothy J Kidd, Soeren Molin, Antonio Oliver
Emergence of epidemic clones and antibiotic resistance development compromises the management of Pseudomonas aeruginosa cystic fibrosis (CF) chronic respiratory infections. Whole genome sequencing (WGS) was used to decipher the phylogeny, interpatient dissemination, WGS mutator genotypes (mutome) and resistome of a widespread clone (CC274), in isolates from two highly-distant countries, Australia and Spain, covering an 18-year period. The coexistence of two divergent CC274 clonal lineages was revealed, but without evident geographical barrier; phylogenetic reconstructions and mutational resistome demonstrated the interpatient transmission of mutators...
July 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28706213/transmission-of-highly-virulent-community-associated-mrsa-st93-and-livestock-associated-mrsa-st398-between-humans-and-pigs-in-australia
#17
S Sahibzada, S Abraham, G W Coombs, S Pang, M Hernández-Jover, D Jordan, J Heller
Pigs have been recognised as a reservoir of livestock associated methicillin-resistant Staphylococcus aureus (LA-MRSA) in Europe, Asia and North America. However, little is known about the presence and distribution of MRSA in the Australian pig population and pig industry. This study describes the presence, distribution and molecular characteristics of the human adapted Australian CA-MRSA ST93 isolated from pigs, people, and the environment within a piggery. Isolates were subjected to antibiotic susceptibility testing, DNA microarray, whole genome sequencing, multi locus sequence typing, virulence and resistance gene characterization and phylogenetic analysis...
July 13, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28665050/assessing-the-public-acceptability-of-proposed-policy-interventions-to-reduce-the-misuse-of-antibiotics-in-australia-a-report-on-two-community-juries
#18
Chris Degeling, Jane Johnson, Jon Iredell, Ky-Anh Nguyen, Jacqueline M Norris, John D Turnidge, Angus Dawson, Stacy M Carter, Gwendolyn L Gilbert
OBJECTIVE: To elicit the views of well-informed community members on the acceptability of proposed policy interventions designed to improve community use of antibiotics in Australia. DESIGN: Two community juries held in 2016. SETTING AND PARTICIPANTS: Western Sydney and Dubbo communities in NSW, Australia. Twenty-nine participants of diverse social and cultural backgrounds, mixed genders and ages recruited via public advertising: one jury was drawn from a large metropolitan setting; the other from a regional/rural setting...
June 30, 2017: Health Expectations: An International Journal of Public Participation in Health Care and Health Policy
https://www.readbyqxmd.com/read/28659133/a-multicentre-double-blind-randomised-controlled-trial-evaluating-the-efficacy-of-daily-use-of-antibacterial-mouthwash-against-oropharyngeal-gonorrhoea-among-men-who-have-sex-with-men-the-omega-oral-mouthwash-use-to-eradicate-gonorrhoea-study-protocol
#19
RANDOMIZED CONTROLLED TRIAL
Eric P F Chow, Sandra Walker, Jane S Hocking, Catriona S Bradshaw, Marcus Y Chen, Sepehr N Tabrizi, Benjamin P Howden, Matthew G Law, Kate Maddaford, Tim R H Read, David A Lewis, David M Whiley, Lei Zhang, Andrew E Grulich, John M Kaldor, Vincent J Cornelisse, Samuel Phillips, Basil Donovan, Anna M McNulty, David J Templeton, Norman Roth, Richard Moore, Christopher K Fairley
BACKGROUND: Gonorrhoea is one of the most common sexually transmissible infections in men who have sex with men (MSM). Gonorrhoea rates have increased substantially in recent years. There is concern that increasing gonorrhoea prevalence will increase the likelihood of worsening antibiotic resistance in Neisseria gonorrhoeae. A recent randomised controlled trial (RCT) demonstrated that a single-dose of mouthwash has an inhibitory effect against oropharyngeal gonorrhoea. We are conducting the first RCT to evaluate whether daily use of mouthwash could reduce the risk of acquiring oropharyngeal gonorrhoea...
June 28, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28619154/an-unusual-culprit-klebsiella-pneumoniae-causing-septicaemia-outbreaks-in-neonatal-pigs
#20
Bethany G Bowring, V Anthony Fahy, Andrew Morris, Alison M Collins
This study investigated the cause of recent outbreaks of septicaemia in neonatal pigs in Australia (Victoria and Queensland). Septicaemia in neonatal pigs is commonly caused by enterotoxigenic E. coli, extraintestinal pathogenic E. coli and beta-haemolytic streptococci. Infrequent causes of septicaemia are Actinobacillus suis and Citrobacter freundii. Therefore, it was quite unexpected when Klebsiella pneumoniae was isolated in predominant growth from multiple organs of pigs dying of septicaemia from six days of age...
May 2017: Veterinary Microbiology
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