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Australia antibiotic resistance

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https://www.readbyqxmd.com/read/28717172/evolution-of-the-pseudomonas-aeruginosa-mutational-resistome-in-an-international-cystic-fibrosis-clone
#1
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
#2
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
#3
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
#4
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
#5
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
https://www.readbyqxmd.com/read/28599008/pediatric-melioidosis-in-sarawak-malaysia-epidemiological-clinical-and-microbiological-characteristics
#6
Anand Mohan, Yuwana Podin, Nickson Tai, Chae-Hee Chieng, Vanessa Rigas, Barbara Machunter, Mark Mayo, Desiree Wong, Su-Lin Chien, Lee-See Tan, Charles Goh, Reginal Bantin, Alexander Mijen, Wen-Yi Chua, King-Ching Hii, See-Chang Wong, Hie-Ung Ngian, Jin-Shyan Wong, Jamilah Hashim, Bart J Currie, Mong-How Ooi
BACKGROUND: Melioidosis is a serious, and potentially fatal community-acquired infection endemic to northern Australia and Southeast Asia, including Sarawak, Malaysia. The disease, caused by the usually intrinsically aminoglycoside-resistant Burkholderia pseudomallei, most commonly affects adults with predisposing risk factors. There are limited data on pediatric melioidosis in Sarawak. METHODS: A part prospective, part retrospective study of children aged <15 years with culture-confirmed melioidosis was conducted in the 3 major public hospitals in Central Sarawak between 2009 and 2014...
June 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28593194/fine-scale-structure-analysis-shows-epidemic-patterns-of-clonal-complex-95-a-cosmopolitan-escherichia-coli-lineage-responsible-for-extraintestinal-infection
#7
David M Gordon, Sarah Geyik, Olivier Clermont, Claire L O'Brien, Shiwei Huang, Charmalie Abayasekara, Ashwin Rajesh, Karina Kennedy, Peter Collignon, Paul Pavli, Christophe Rodriguez, Brian D Johnston, James R Johnson, Jean-Winoc Decousser, Erick Denamur
The Escherichia coli lineage known as clonal complex 95 (CC95) is a cosmopolitan human-associated lineage responsible for a significant fraction of extraintestinal infections of humans. Whole-genome sequence data of 200 CC95 strains from various origins enabled determination of the CC95 pangenome. The pangenome analysis revealed that strains of the complex could be assigned to one of five subgroups that vary in their serotype, extraintestinal virulence, virulence gene content, and antibiotic resistance gene profile...
May 2017: MSphere
https://www.readbyqxmd.com/read/28542602/antimicrobial-resistance-status-of-enterococcus-from-australian-cattle-populations-at-slaughter
#8
Robert S Barlow, Kate E McMillan, Lesley L Duffy, Narelle Fegan, David Jordan, Glen E Mellor
Antimicrobial agents are used in cattle production systems for the prevention and control of bacterial associated diseases. A consequence of their use is the potential development of antimicrobial resistance (AMR). Enterococcus faecium and Enterococcus faecalis that are resistant to antimicrobials are of increased concern to public health officials throughout the world as they may compromise the ability of various treatment regimens to control disease and infection in human medicine. Australia is a major exporter of beef; however it does not have an ongoing surveillance system for AMR in cattle or foods derived from these animals...
2017: PloS One
https://www.readbyqxmd.com/read/28493905/melioidosis-clinical-impact-and-public-health-threat-in-the-tropics
#9
REVIEW
Ramar Perumal Samy, Bradley G Stiles, Gautam Sethi, Lina H K Lim
This review briefly summarizes the geographical distribution and clinical impact of melioidosis, especially in the tropics. Burkholderia pseudomallei (a gram-negative bacterium) is the major causative agent for melioidosis, which is prevalent in Singapore, Malaysia, Thailand, Vietnam, and Northern Australia. Melioidosis patients are increasingly being recognized in other parts of the world. The bacteria are intrinsically resistant to many antimicrobial agents, but prolonged treatment, especially with combinations of antibiotics, may be effective...
May 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28435890/gene-expression-profile-of-human-cytokines-in-response-to-burkholderia-pseudomallei-infection
#10
Shivankari Krishnananthasivam, Harindra Darshana Sathkumara, Enoka Corea, Mohan Natesan, Aruna Dharshan De Silva
Melioidosis is an underreported infectious disease, caused by the Gram-negative bacterium Burkholderia pseudomallei. Understanding the disease susceptibility and pathogenesis is crucial for developing newer diagnostic and therapeutic strategies for this life-threatening infection. In this study, we aimed to analyze the gene expression levels of important cytokines in melioidosis patients and establish useful correlates with disease biomarkers compared to cases of sepsis infection caused by other pathogens and healthy individuals...
March 2017: MSphere
https://www.readbyqxmd.com/read/28421643/empiric-antibiotic-regimens-for-neonatal-sepsis-in-australian-and-new-zealand-neonatal-intensive-care-units
#11
Jeremy P Carr, David P Burgner, Rohan S Hardikar, Jim P Buttery
AIM: Neonatal sepsis remains an important cause of morbidity and mortality, and requires prompt empiric treatment. However, only a minority of babies who receive antibiotics for suspected sepsis have an infection. Antimicrobial exposure in infancy has important short- and long-term consequences. There is no consensus regarding empirical antimicrobial regimens. METHODS: The study included a survey of empiric antimicrobial regimens in all tertiary neonatal intensive care units in Australia and New Zealand in 2013-2014...
April 19, 2017: Journal of Paediatrics and Child Health
https://www.readbyqxmd.com/read/28389093/risk-factors-for-kpc-producing-enterobacteriaceae-acquisition-and-infection-in-a-healthcare-setting-with-possible-local-transmission-a-case-control-study
#12
K M Cronin, Y S Poy Lorenzo, M E Olenski, A E Bloch, K Visvanathan, M J Waters, K L Buising
BACKGROUND: Reports of Klebsiella pneumoniae carbapenemase (KPC)-producing K. pneumoniae (KPC-Kp) in Australia were previously uncommon, with cases imported sporadically by travellers from higher prevalence countries. AIM: The study institution reported the first outbreak of KPC-Kp in Australia. The aim of this study was to identify risk factors for KPC-Kp colonization and infection using a matched case-control study. METHODS: The study included all hospitalized patients with KPC-Kp colonization or infection from January 2012 to September 2015...
June 2017: Journal of Hospital Infection
https://www.readbyqxmd.com/read/28289114/parents-expectations-and-experiences-of-antibiotics-for-acute-respiratory-infections-in-primary-care
#13
Peter D Coxeter, Chris Del Mar, Tammy C Hoffmann
PURPOSE: Primary care visits for children with acute respiratory infections frequently result in antibiotic prescriptions, although antibiotics have limited benefits for common acute respiratory infections and can cause harms, including antibiotic resistance. Parental demands are often blamed for antibiotic prescription. We aimed to explore parents' beliefs about antibiotic necessity, quantify their expectations of antibiotic benefit, and report experiences of other management options and exposure to and preferences for shared decision making...
March 2017: Annals of Family Medicine
https://www.readbyqxmd.com/read/28273168/within-host-whole-genome-analysis-of-an-antibiotic-resistant-pseudomonas-aeruginosa-strain-sub-type-in-cystic-fibrosis
#14
Laura J Sherrard, Anna S Tai, Bryan A Wee, Kay A Ramsay, Timothy J Kidd, Nouri L Ben Zakour, David M Whiley, Scott A Beatson, Scott C Bell
A Pseudomonas aeruginosa AUST-02 strain sub-type (M3L7) has been identified in Australia, infects the lungs of some people with cystic fibrosis and is associated with antibiotic resistance. Multiple clonal lineages may emerge during treatment with mutations in chromosomally encoded antibiotic resistance genes commonly observed. Here we describe the within-host diversity and antibiotic resistance of M3L7 during and after antibiotic treatment of an acute pulmonary exacerbation using whole genome sequencing and show both variation and shared mutations in important genes...
2017: PloS One
https://www.readbyqxmd.com/read/28178770/interventions-to-improve-antibiotic-prescribing-practices-for-hospital-inpatients
#15
REVIEW
Peter Davey, Charis A Marwick, Claire L Scott, Esmita Charani, Kirsty McNeil, Erwin Brown, Ian M Gould, Craig R Ramsay, Susan Michie
BACKGROUND: Antibiotic resistance is a major public health problem. Infections caused by multidrug-resistant bacteria are associated with prolonged hospital stay and death compared with infections caused by susceptible bacteria. Appropriate antibiotic use in hospitals should ensure effective treatment of patients with infection and reduce unnecessary prescriptions. We updated this systematic review to evaluate the impact of interventions to improve antibiotic prescribing to hospital inpatients...
February 9, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28173787/first-time-identification-of-pandoraea-sputorum-from-a-patient-with-cystic-fibrosis-in-argentina-a-case-report
#16
Pablo F Martina, Mónica Martínez, Guillermo Frada, Florencia Alvarez, Lorena Leguizamón, Claudia Prieto, Carolina Barrias, Marisa Bettiol, Antonio Lagares, Alejandra Bosch, Julián Ferreras, Martha Von Specht
BACKGROUND: Pandoraea species are considered emerging pathogens in the context of cystic fibrosis (CF) and are difficult to identify by conventional biochemical methods. These multidrug resistant bacteria remain poorly understood particularly in terms of natural resistance, mechanisms of acquired resistance and impact on the prognosis of the disease and the lung function. Among them, Pandoraea sputorum has been previously described in few cases of CF patients from Spain, Australia, France and United States, underlining the need of more clinical data for a better knowledge of its pathogenicity...
February 7, 2017: BMC Pulmonary Medicine
https://www.readbyqxmd.com/read/28118021/notification-of-nontuberculous-mycobacteria-an-australian-perspective
#17
Rachel Thomson, Ellen Donnan, Anastasios Konstantinos
In Queensland, Australia, all cases of mycobacterial infection (tuberculosis [TB] and nontuberculous mycobacteria [NTM]) are notifiable under the Queensland Public Health Act (2005). This process originally emerged to avoid NTM confounding with notification of cases of TB, but has facilitated awareness of the increasing incidence and changing epidemiology of NTM. Although initially not a public health priority, the notification process has facilitated research that has led to an appreciation of both public health and environmental health issues associated with these pathogens...
March 2017: Annals of the American Thoracic Society
https://www.readbyqxmd.com/read/28107364/genetic-attributes-of-e-coli-isolates-from-chlorinated-drinking-water
#18
Michaela D J Blyton, David M Gordon
Escherichia coli, is intimately associated with both human health and water sanitation. E. coli isolates from water can either be (i) host associated commensals, indicating recent faecal contamination; (ii) diarrheal pathogens or (iii) extra-intestinal pathogens that pose a direct health risk; or (iv) free-living. In this study we genetically characterised 28 E. coli isolates obtained from treated drinking water in south eastern Australia to ascertain their likely source. We used full genome sequencing to assign the isolates to their phylogenetic group and multi-locus sequence type...
2017: PloS One
https://www.readbyqxmd.com/read/28100229/surveillance-of-life-long-antibiotics-a-review-of-antibiotic-prescribing-practices-in-an-australian-healthcare-network
#19
Jillian S Y Lau, Christopher Kiss, Erika Roberts, Kylie Horne, Tony M Korman, Ian Woolley
BACKGROUND: The rise of antimicrobial use in the twentieth century has significantly reduced morbidity due to infection, however it has also brought with it the rise of increasing resistance. Some patients are on prolonged, if not "life-long" course of antibiotics. The reasons for this are varied, and include non-infectious indications. We aimed to study the characteristics of this potential source of antibiotic resistance, by exploring the antibiotic dispensing practices and describing the population of patients on long-term antibiotic therapy...
January 18, 2017: Annals of Clinical Microbiology and Antimicrobials
https://www.readbyqxmd.com/read/28018320/single-molecule-sequencing-pacbio-of-the-staphylococcus-capitis-nrcs-a-clone-reveals-the-basis-of-multidrug-resistance-and-adaptation-to-the-neonatal-intensive-care-unit-environment
#20
Patrícia Martins Simões, Hajar Lemriss, Yann Dumont, Sanâa Lemriss, Jean-Philippe Rasigade, Sophie Assant-Trouillet, Azeddine Ibrahimi, Saâd El Kabbaj, Marine Butin, Frédéric Laurent
The multi-resistant Staphylococcus capitis clone NRCS-A has recently been described as a major pathogen causing nosocomial, late-onset sepsis (LOS) in preterm neonates worldwide. NRCS-A representatives exhibit an atypical antibiotic resistance profile. Here, the complete closed genome (chromosomal and plasmid sequences) of NRCS-A prototype strain CR01 and the draft genomes of three other clinical NRCS-A strains from Australia, Belgium and the United Kingdom are annotated and compared to available non-NRCS-A S...
2016: Frontiers in Microbiology
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