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Antimicrobial surveillance

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https://www.readbyqxmd.com/read/28820383/carbapenemase-producing-enterobacteriaceae-and-nonfermentative-bacteria-the-philippines-2013-2016
#1
John Mark Velasco, Maria Theresa Valderama, Trent Peacock, Nirdnoy Warawadee, Kathyleen Nogrado, Fatima Claire Navarro, Domingo Chua, Srijan Apichai, Ruekit Sirigade, Louis R Macareo, Brett Swierczewski
During 2013-2016, we isolated blaNDM- and blaVIM-harboring Enterobacteriaceae and nonfermentative bacteria from patients in the Philippines. Of 130 carbapenem-resistant isolates tested, 45 were Carba NP-positive; 43 harbored blaNDM, and 2 harbored blaVIM. Multidrug-resistant microbial pathogen surveillance and antimicrobial drug stewardship are needed to prevent further spread of New Delhi metallo-β-lactamase variants.
September 2017: Emerging Infectious Diseases
https://www.readbyqxmd.com/read/28820133/epidemiology-of-salmonella-enterica-serotype-dublin-infections-among-humans-united-states-1968-2013
#2
R Reid Harvey, Cindy R Friedman, Stacy M Crim, Michael Judd, Kelly A Barrett, Beth Tolar, Jason P Folster, Patricia M Griffin, Allison C Brown
Salmonella enterica serotype Dublin is a cattle-adapted bacterium that typically causes bloodstream infections in humans. To summarize demographic, clinical, and antimicrobial drug resistance characteristics of human infections with this organism in the United States, we analyzed data for 1968-2013 from 5 US surveillance systems. During this period, the incidence rate for infection with Salmonella Dublin increased more than that for infection with other Salmonella. Data from 1 system (FoodNet) showed that a higher percentage of persons with Salmonella Dublin infection were hospitalized and died during 2005-2013 (78% hospitalized, 4...
September 2017: Emerging Infectious Diseases
https://www.readbyqxmd.com/read/28820128/molecular-antimicrobial-resistance-surveillance-for-neisseria-gonorrhoeae-northern-territory-australia
#3
David M Whiley, Ella Trembizki, Cameron Buckley, Kevin Freeman, Robert W Baird, Miles Beaman, Marcus Chen, Basil Donovan, Ratan L Kundu, Christopher K Fairley, Rebecca Guy, Tiffany Hogan, John M Kaldor, Mahdad Karimi, Athena Limnios, David G Regan, Nathan Ryder, Jiunn-Yih Su, James Ward, Monica M Lahra
Neisseria gonorrhoeae antimicrobial resistance (AMR) is a globally recognized health threat; new strategies are needed to enhance AMR surveillance. The Northern Territory of Australia is unique in that 2 different first-line therapies, based primarily on geographic location, are used for gonorrhea treatment. We tested 1,629 N. gonorrhoeae nucleic acid amplification test-positive clinical samples, collected from regions where ceftriaxone plus azithromycin or amoxicillin plus azithromycin are recommended first-line treatments, by using 8 N...
September 2017: Emerging Infectious Diseases
https://www.readbyqxmd.com/read/28820112/prevalence-study-of-plasmid-mediated-ampc-%C3%AE-lactamases-in-enterobacteriaceae-lacking-inducible-ampc-from-saudi-hospitals
#4
Baha Abdalhamid, Samar Albunayan, Alaa Shaikh, Nasreldin Elhadi, Reem Aljindan
PURPOSE: Enterobacteriaceae encoding plasmid-mediated AmpC (pAmpC) β-lactamases confer resistance to the third generation cephalosporins. pAmpC association with extended spectrum β-lactamases (ESBLs), plasmid-mediated quinolone resistance (PMQR) and aminoglycoside modifying enzymes (AMEs) is well documented. There are limited data regarding the epidemiology and clinical significance of pAmpC in Saudi Arabia. This study aimed to determine the prevalence of pAmpC and its coexistence with ESBLs, PMQR and AMEs in Escherichia coli, Klebsiella pneumoniae and Proteus mirabilis isolates in Saudi hospitals from January to December 2015...
August 18, 2017: Journal of Medical Microbiology
https://www.readbyqxmd.com/read/28818544/trends-in-antimicrobial-resistance-in-bloodstream-infection-isolates-at-a-large-urban-hospital-in-malawi-1998-2016-a-surveillance-study
#5
Patrick Musicha, Jennifer E Cornick, Naor Bar-Zeev, Neil French, Clemens Masesa, Brigitte Denis, Neil Kennedy, Jane Mallewa, Melita A Gordon, Chisomo L Msefula, Robert S Heyderman, Dean B Everett, Nicholas A Feasey
BACKGROUND: Bacterial bloodstream infection is a common cause of morbidity and mortality in sub-Saharan Africa, yet few facilities are able to maintain long-term surveillance. The Malawi-Liverpool-Wellcome Trust Clinical Research Programme has done sentinel surveillance of bacteraemia since 1998. We report long-term trends in bloodstream infection and antimicrobial resistance from this surveillance. METHODS: In this surveillance study, we analysed blood cultures that were routinely taken from adult and paediatric patients with fever or suspicion of sepsis admitted to Queen Elizabeth Central Hospital, Blantyre, Malawi from 1998 to 2016...
August 14, 2017: Lancet Infectious Diseases
https://www.readbyqxmd.com/read/28813520/the-frequency-of-class1-and-2-integrons-in-pseudomonas-aeruginosa-strains-isolated-from-burn-patients-in-a-burn-center-of-ahvaz-iran
#6
Azar Dokht Khosravi, Moloudsadat Motahar, Effat Abbasi Montazeri
BACKGROUND: Pseudomonas aeruginosa is an opportunistic pathogen with the ability to cause severe nosocomial infections and remains a major problem in burn patients. This organism shows a remarkable antimicrobial resistance and is often resistant to multiple antibiotics. Integron genes as mobile genetic elements are playing an important role in the spread of P. aeruginosa antibiotic resistance. This study was aimed to investigate the occurrence of class 1, and 2 integron genes (int1, int2), among P...
2017: PloS One
https://www.readbyqxmd.com/read/28810827/validation-of-%C3%AE-lactam-minimum-inhibitory-concentration-predictions-for-pneumococcal-isolates-with-newly-encountered-penicillin-binding-protein-pbp-sequences
#7
Yuan Li, Benjamin J Metcalf, Sopio Chochua, Zhongya Li, Robert E Gertz, Hollis Walker, Paulina A Hawkins, Theresa Tran, Lesley McGee, Bernard W Beall
BACKGROUND: Genomic sequence-based deduction of antibiotic minimum inhibitory concentration (MIC) has great potential to enhance the speed and sensitivity of antimicrobial susceptibility testing. We previously developed a penicillin-binding protein (PBP) typing system and two methods (Random Forest (RF) and Mode MIC (MM)) that accurately predicted β-lactam MICs for pneumococcal isolates carrying a characterized PBP sequence type (phenotypic β-lactam MICs known for at least one isolate of this PBP type)...
August 15, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28809644/-endoprosthesis-infections-guidelines-for-antibiotic-therapy-common-guidelines-of-the-czech-society-for-orthopaedics-and-traumatology-and-the-society-for-infectious-diseases-of-the-czech-medical-association-of-j-e-purkyn%C3%A4
#8
D Musil, M Balejová, M Horníková, A Chrdle, N Mallátová, O Nyč, V Chmelík, J Gallo, D Jahoda, J Stehlík
PURPOSE OF THE STUDY This study aims to articulate regional guidelines for curative and suppressive antibiotic therapy of total joint replacement infections. MATERIAL AND METHODS When developing the standard, used as source materials were the published foreign guidelines for antibiotic therapy of prosthetic joint infections, the analysis of resistance of bacterial strains conducted in the Hospital in České Budějovice, a.s. and the assessment of strain resistance for the Czech Republic published by the European Antimicrobial Resistance Surveillance Network (EARS-Net)...
2017: Acta Chirurgiae Orthopaedicae et Traumatologiae Cechoslovaca
https://www.readbyqxmd.com/read/28807097/genotypic-characterization-of-methicillin-resistant-staphylococcus-aureus-isolated-from-pigs-and-retail-foods-in-china
#9
Wei Wang, Feng Liu, Zulqarnain Baloch, Cun Shan Zhang, Ke Ma, Zi Xin Peng, Shao Fei Yan, Yu Jie Hu, Xin Gan, Yin Ping Dong, Yao Bai, Feng Qin Li, Xiao Mein Yan, Ai Guo Ma, Jin Xu
OBJECTIVE: To investigate the genotypic diversity of Methicillin-resistant Staphylococcus aureus (MRSA) isolated from pigs and retail foods from different geographical areas in China and further to study the routes and rates of transmission of this pathogen from animals to food. METHODS: Seventy-one MRSA isolates were obtained from pigs and retail foods and then characterized by multi-locus sequencing typing (MLST), spa typing, multiple-locus variable number of tandem repeat analysis (MLVA), pulsed-field gel electrophoresis (PFGE), and antimicrobial susceptibility testing...
August 2017: Biomedical and Environmental Sciences: BES
https://www.readbyqxmd.com/read/28797299/prevalence-of-antimicrobial-drug-resistant-bacteria-carried-by-in-and-outpatients-attending-a-secondary-care-hospital-in-zambia
#10
Marjolijn M B Nagelkerke, Kapembwa Sikwewa, Dennis Makowa, Irene de Vries, Simon Chisi, J Wendelien Dorigo-Zetsma
OBJECTIVE: Antimicrobial resistance is an increasing global health problem. Very little data on resistance patterns of pathogenic bacteria in low-income countries exist. The aim of this study was to measure the prevalence of antimicrobial drug resistant bacteria carried by in- and outpatients in the resource constraint setting of a secondary care hospital in Zambia. Nasal and rectal samples from 50 in- and 50 outpatients were collected. Patients were randomly selected and informed consent was obtained...
August 10, 2017: BMC Research Notes
https://www.readbyqxmd.com/read/28792800/national-antimicrobial-resistance-monitoring-system-two-decades-of-advancing-public-health-through-integrated-surveillance-of-antimicrobial-resistance
#11
Beth E Karp, Heather Tate, Jodie R Plumblee, Uday Dessai, Jean M Whichard, Eileen L Thacker, Kis Robertson Hale, Wanda Wilson, Cindy R Friedman, Patricia M Griffin, Patrick F McDermott
Drug-resistant bacterial infections pose a serious and growing public health threat globally. In this review, we describe the role of the National Antimicrobial Resistance Monitoring System (NARMS) in providing data that help address the resistance problem and show how such a program can have broad positive impacts on public health. NARMS was formed two decades ago to help assess the consequences to human health arising from the use of antimicrobial drugs in food animal production in the United States. A collaboration among the Centers for Disease Control and Prevention, the U...
August 9, 2017: Foodborne Pathogens and Disease
https://www.readbyqxmd.com/read/28783696/il-1%C3%AE-is-an-innate-immune-sensor-of-microbial-proteolysis
#12
Christopher N LaRock, Jordan Todd, Doris L LaRock, Joshua Olson, Anthony J O'Donoghue, Avril A B Robertson, Matthew A Cooper, Hal M Hoffman, Victor Nizet
Interleukin-1β (IL-1β) is a key proinflammatory cytokine that drives antimicrobial immune responses. IL-1β is aberrantly activated in autoimmune diseases, and IL-1β inhibitors are used as therapeutic agents to treat patients with certain autoimmune disorders. Review of postmarketing surveillance of patients receiving IL-1β inhibitors found a disproportionate reporting of invasive infections by group A Streptococcus (GAS). IL-1β inhibition increased mouse susceptibility to GAS infection, but IL-1β was produced independent of canonical inflammasomes...
August 19, 2016: Science Immunology
https://www.readbyqxmd.com/read/28783096/c-di-amp-an-essential-molecule-in-the-signaling-pathways-that-regulate-the-viability-and-virulence-of-gram-positive-bacteria
#13
REVIEW
Tazin Fahmi, Gary C Port, Kyu Hong Cho
Signal transduction pathways enable organisms to monitor their external environment and adjust gene regulation to appropriately modify their cellular processes. Second messenger nucleotides including cyclic adenosine monophosphate (c-AMP), cyclic guanosine monophosphate (c-GMP), cyclic di-guanosine monophosphate (c-di-GMP), and cyclic di-adenosine monophosphate (c-di-AMP) play key roles in many signal transduction pathways used by prokaryotes and/or eukaryotes. Among the various second messenger nucleotides molecules, c-di-AMP was discovered recently and has since been shown to be involved in cell growth, survival, and regulation of virulence, primarily within Gram-positive bacteria...
August 7, 2017: Genes
https://www.readbyqxmd.com/read/28781188/distribution-and-antimicrobial-susceptibility-of-vibrio-species-associated-with-zooplankton-in-coastal-area-of-korea
#14
Ji Hye Yang, Jong Soo Mok, Yeoun Joong Jung, Ka Jeong Lee, Ji Young Kwon, Kunbawui Park, Seong Yong Moon, Soon Jae Kwon, A Ra Ryu, Tea Seek Lee
Vibrio parahaemolyticus and V. vulnificus are the most common pathogens causing seafood-borne illnesses in Korea. This study determines the abundance and antimicrobial resistance of pathogenic Vibrio species in seawater and zooplankton samples from the Geoje Island coast in Korea, which is an important area for coastal fisheries, the fishing industry, and tourism. The two Vibrio species were detected more in mesozooplankton samples than in seawater samples. V. parahaemolyticus isolates showed greater resistance than those of V...
August 4, 2017: Marine Pollution Bulletin
https://www.readbyqxmd.com/read/28774865/shifts-in-antimicrobial-consumption-and-infection-rates-before-and-during-a-piperacillin-tazobactam-shortage
#15
S Travis King, Katie E Barber, Jason J Parham, Kayla R Stover
BACKGROUND: Anti-infective shortages represent a growing threat to the optimal management of the infected patient and alter the institutional selective pressure against hospital-acquired infections. The objective of this analysis was to assess the impact that a shortage of piperacillin-tazobactam had on the overall antibacterial use and HAI rates at an academic institution. METHODS: Antimicrobial use and infection data were extracted from TheraDoc Clinical Surveillance Software (Premier, Inc...
July 31, 2017: Journal of Global Antimicrobial Resistance
https://www.readbyqxmd.com/read/28766871/prevalence-and-antimicrobial-resistance-among-escherichia-coli-and-salmonella-in-ontario-smallholder-chicken-flocks
#16
L Lebert, S-L Martz, N Janecko, A E Deckert, A Agunos, A Reid, J E Rubin, R J Reid-Smith, S A McEwen
Surveillance is an important component of an overall strategy to address antimicrobial resistant bacteria in food animals and the food chain. The poultry market has many points of entry into the Canadian food chain, and some production practices are underrepresented in terms of surveillance. For example, pathogen carriage and antimicrobial resistance surveillance data are limited in smallholder chicken flocks raised for slaughter at provincially inspected abattoirs. In Canada, antimicrobial resistance in Escherichia coli and Salmonella isolated from commercial broiler chicken flocks, slaughtered at federally inspected abattoirs, is monitored by the Canadian Integrated Program for Antimicrobial Resistance Surveillance (CIPARS)...
August 2, 2017: Zoonoses and Public Health
https://www.readbyqxmd.com/read/28757348/draft-genome-sequence-of-an-aminoglycoside-resistant-rmtd-2-producing-enterobacter-cloacae-subsp-cloacae-st-395-in-brazil
#17
Evelin Rodrigues Martins, Maria Fernanda Campagnari Bueno, Gabriela Rodrigues Francisco, Fernanda Modesto Tolentino, Louise Cerdeira, Tiago Casella, Monalisa Nogueira Costa, Carla Cevada, Nilton Lincopan, Doroti de Oliveira Garcia, Mara Corrêa Lelles Nogueira
OBJECTIVES: Enterobacter cloacae has recently emerged as an important agent of nosocomial infections, due to the diffusion of extended spectrum β-lactamases and carbapenemases in this species. In this context, a raise in the use of aminoglycosides for therapy was noticed, being followed by the accelerated development of resistance mechanisms. In this study, we report the draft genome sequence of a multidrug-resistant Enterobacter cloacae subsp. cloacae strain (Ec2), isolated from active surveillance culture of a patient with Chagas disease...
July 27, 2017: Journal of Global Antimicrobial Resistance
https://www.readbyqxmd.com/read/28757017/characterization-of-ndm-5-positive-extensively-resistant-escherichia-coli-isolates-from-dairy-cows
#18
Tao He, Ruicheng Wei, Lili Zhang, Lichang Sun, Maoda Pang, Ran Wang, Yang Wang
The aim of this study was to investigate the prevalence of blaNDM-5 gene in Escherichia coli isolates from dairy cows and to characterize the molecular traits of the blaNDM-5-positive isolates. A total of 169 cows were sampled (169 feces and 169 raw milk samples) in three dairy farms in Jiangsu Province and 203 E. coli isolates were recovered. Among these strains, three isolates carried blaNDM-5 gene, including one co-harboring mcr-1, which belonged to sequence type 446 and the other two belonged to ST2. Susceptibility testing revealed that the three blaNDM-5-positive isolates showed extensive resistance to antimicrobials...
August 2017: Veterinary Microbiology
https://www.readbyqxmd.com/read/28754299/antimicrobial-resistance-in-neisseria-gonorrhoeae-history-molecular-mechanisms-and-epidemiological-aspects-of-an-emerging-global-threat
#19
REVIEW
Ana Paula Ramalho da Costa Lourenço, Késia Thaís Barros Dos Santos, Beatriz Meurer Moreira, Sergio Eduardo Longo Fracalanzza, Raquel Regina Bonelli
Neisseria gonorrhoeae is the agent of gonorrhea, a sexually transmitted infection with an estimate from The World Health Organization of 78 million new cases in people aged 15-49 worldwide during 2012. If left untreated, complications may include pelvic inflammatory disease and infertility. Antimicrobial treatment is usually effective; however, resistance has emerged successively through various molecular mechanisms for all the regularly used therapeutic agents throughout decades. Detection of antimicrobial susceptibility is currently the most critical aspect for N...
July 12, 2017: Brazilian Journal of Microbiology: [publication of the Brazilian Society for Microbiology]
https://www.readbyqxmd.com/read/28754148/nosocomial-bacterial-infections-and-their-antimicrobial-susceptibility-patterns-among-patients-in-ugandan-intensive-care-units-a-cross-sectional-study
#20
Peter Agaba, Janat Tumukunde, J V B Tindimwebwa, Arthur Kwizera
BACKGROUND: The intensive care unit (ICU) admits critically ill patients requiring advanced airway, respiratory, cardiac and renal support. Despite the highly-specialized interventions, the mortality and morbidity is still high due to a number of reasons including nosocomial infections, which are the most likely complications in hospitalized patients with the rates being highest among ICU patients. METHODS: In this cross-sectional study of 111 adult patients admitted to 2 of the ICUs in Uganda, we set out to describe the commonest bacterial infections, their antimicrobial susceptibility patterns and factors associated with development of a nosocomial infection...
July 28, 2017: BMC Research Notes
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