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https://www.readbyqxmd.com/read/28722566/molecular-epidemiology-of-staphylococcus-aureus-skin-and-soft-tissue-infections-in-the-lao-people-s-democratic-republic
#1
Alicia D Yeap, Kate Woods, David A B Dance, Bruno Pichon, Sayaphet Rattanavong, Viengmon Davong, Rattanaphone Phetsouvanh, Paul N Newton, Nandini Shetty, Angela M Kearns
This is the first report of the molecular epidemiology of Staphylococcus aureus from skin and soft tissue infections (SSTI) in Laos. We selected a random sample of 96 S. aureus SSTI isolates received by the Microbiology Laboratory, Mahosot Hospital, Vientiane, between July 2012 and June 2014, including representation from seven referral hospitals. Isolates underwent susceptibility testing by Clinical and Laboratory Standards Institute methods, spa typing and DNA microarray analysis, with whole genome sequencing for rare lineages...
May 30, 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/28717239/a-novel-pathogen-capturing-device-for-removal-and-detection
#2
Gwangseong Kim, Horatiu Vinerean, Angelo Gaitas
A simple technique that employs an antibody coated polydimethylsiloxane tube is used for effective capturing of bloodborne and foodborne pathogens. By recirculating the entire sample through the antibody coated tube, accumulation of target pathogens is achieved, thereby delivering a higher concentration of pathogens in a small volume. The described method can provide an effective and economical solution to microbiology techniques that rely on enrichment, thereby expediting diagnostics. Using this method 80...
July 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28705768/the-clinical-and-microbiological-characteristics-of-infections-in-burn-patients-from-the-formosa-fun-coast-dust-explosion
#3
Tzu-Chao Lin, Rui-Xin Wu, Chih-Chien Chiu, Ya-Sung Yang, Yi Lee, Jung-Chung Lin, Feng-Yee Chang
BACKGROUND/PURPOSE: Bloodstream infection is a leading cause of mortality among burn patients. This study aimed to evaluate the risk factors, causative pathogens, and the relationship between bloodstream infections and other infections among burn patients from the Formosa Fun Coast Dust Explosion. METHODS: This retrospective study evaluated the demographic and clinical characteristics, infection types, causative pathogen(s), and isolates' antibiotic susceptibilities from patients who were hospitalized between June 27 and September 31, 2015...
June 22, 2017: Journal of Microbiology, Immunology, and Infection, Wei Mian Yu Gan Ran za Zhi
https://www.readbyqxmd.com/read/28704546/epidemiology-of-staphylococcus-aureus-in-a-burn-unit-of-a-tertiary-care-center-in-ghana
#4
Nana Ama Amissah, Lieke van Dam, Anthony Ablordey, Opoku-Ware Ampomah, Isaac Prah, Caitlin S Tetteh, Tjip S van der Werf, Alexander W Friedrich, John W Rossen, Jan Maarten van Dijl, Ymkje Stienstra
BACKGROUND: In developing countries, hospitalized burn victims are at high risk of nosocomial infections caused by Staphylococcus aureus. Risk factors include poor infection control practices, prolonged hospitalisation and limited capacity for laboratory microbiological analyses. These problems are compounded by widespread use of antibiotics that drives the spread of multi-drug resistant bacteria. METHODS: During the study period (November 2014-June 2015), nasal and invasive S...
2017: PloS One
https://www.readbyqxmd.com/read/28701159/bacterial-bloodstream-infections-in-a-tertiary-infectious-diseases-hospital-in-northern-vietnam-aetiology-drug-resistance-and-treatment-outcome
#5
Vu Quoc Dat, Hieu Ngoc Vu, Hung Nguyen The, Hoa Thi Nguyen, Long Bao Hoang, Dung Vu Tien Viet, Chi Linh Bui, Kinh Van Nguyen, Trung Vu Nguyen, Dao Tuyet Trinh, Alessandro Torre, H Rogier van Doorn, Behzad Nadjm, Heiman F L Wertheim
BACKGROUND: Bloodstream infections (BSIs) are associated with high morbidity and mortality worldwide. However their aetiology, antimicrobial susceptibilities and associated outcomes differ between developed and developing countries. Systematic data from Vietnam are scarce. Here we present aetiologic data on BSI in adults admitted to a large tertiary referral hospital for infectious diseases in Hanoi, Vietnam. METHODS: A retrospective study was conducted at the National Hospital for Tropical Diseases between January 2011 and December 2013...
July 12, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28701082/bovine-mastitis-prevention-humoral-and-cellular-response-of-dairy-cows-inoculated-with-lactic-acid-bacteria-at-the-dry-off-period
#6
M Pellegrino, N Berardo, J Giraudo, M E F Nader-Macías, C Bogni
The use of lactic acid bacteria (LAB) in animal feed, constitute an alternative tool for bovine mastitis prevention. Previously, two LAB strains were isolated from bovine milk and selected for their probiotics properties. So far, immune response of inoculating LAB in bovine udders at dry-off period has not been investigated. The immunoglobulin isotype levels and memory cell proliferation in blood and milk of animals inoculated with Lactobacillus lactis subsp. lactis CRL1655 and Lactobacillus perolens CRL1724 at dry-off period was studied...
July 13, 2017: Beneficial Microbes
https://www.readbyqxmd.com/read/28693489/inducible-clindamycin-and-methicillin-resistant-staphylococcus-aureus-in-a-tertiary-care-hospital-kathmandu-nepal
#7
R P Adhikari, S Shrestha, A Barakoti, R Amatya
BACKGROUND: Staphylococcus aureus, an important nosocomial pathogen, is frequently associated with infections in human. The management of the infections by it especially methicillin resistant ones is often difficult because methicillin resistant S. aureus is usually resistant to multiple antibiotics. Macrolide-lincosamide streptogramin B family of antibiotics is commonly used to treat such infections as an alternative to vancomycin. METHODS: This study was conducted over the period of one and half year from November 2013-April 2015 in Microbiology laboratory of Nepal Medical College and Teaching Hospital, Kathmandu, Nepal to find the incidence of different phenotypes of MLSB resistance among S...
July 11, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28690730/septic-arthritis-of-the-pubis-symphysis-clinical-and-therapeutic-features
#8
Zeineb Alaya, Houneida Zaghouani, Walid Osman, Lassad Hassini, Nader Naouar, Mohamed Laziz Ben Ayèche, Elyès Bouajina
Septic arthritis of the pubis symphysis is rare and difficult to diagnose. The objective of our study was to describe the biological, clinical, radiological and therapeutic aspects of this disease. This is a retrospective study of 4 cases of septic arthritis of the pubic symphysis collected in the Department of Rheumatology and Orthopaedics in Sousse in Tunisia over a period of 16 years (2000-2016). Our population consists of 3 women and one men. The mean age was 47 years (18-83). Clinical signs of appeal were inflammatory groin pain, pubic pain and fever...
2017: Pan African Medical Journal
https://www.readbyqxmd.com/read/28690596/a-novel-approach-to-predict-the-growth-of-staphylococcus-aureus-on-rice-cake
#9
Jun Wang, Shige Koseki, Mi-Ja Chung, Deog-Hwan Oh
This study aimed to investigate the growth kinetics of Staphylococcus aureus on rice cake and to determine the shelf life based on the probability model of the increase in S. aureus contamination on rice cake. Secondary models were developed based on the growth parameters derived from the Baranyi model at constant temperatures (15, 25, 35, and 45°C). External validation was then conducted using additional data under experimental conditions not used in development of the models to verify the performance and reliability of the developed model through different goodness-of-fit indices...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28681813/is-there-a-need-to-revise-the-antibiotic-concentration-in-clinical-and-laboratory-standards-institute-recommended-oxacillin-screen-agar
#10
Niveditha Nagasundaram, Sujatha Sistla
INTRODUCTION: In routine diagnostic microbiology laboratories, Clinical and Laboratory Standards Institute (CLSI) recommends the use of cefoxitin disc, in addition to oxacillin screen agar (OSA) of 6 μg/ml for the detection of methicillin-resistant Staphylococcus aureus (MRSA), whereas minimum inhibitory concentration values of oxacillin for S. aureus are ≤2 μg/ml (susceptible) and ≥4 μg/ml (resistant). Hence, the study was carried out to evaluate the ability of screen agar with lower concentrations of oxacillin to identify the isolates of MRSA and to compare this with cefoxitin disc diffusion (CDD)...
April 2017: Indian Journal of Medical Microbiology
https://www.readbyqxmd.com/read/28680970/nbiochip-a-lab-on-a-chip-platform-of-mono-and-polymicrobial-biofilms-for-high-throughput-downstream-applications
#11
Anand Srinivasan, Nelson S Torres, Kai P Leung, Jose L Lopez-Ribot, Anand K Ramasubramanian
Current in vitro techniques for the culture of microorganisms, and particularly of delicate microbial biofilms, are still mostly limited to low-density plates and manual labor and are not amenable to automation and true high-throughput (HT) applications. We have developed a novel fully automated platform for the formation of mono- and polymicrobial biofilms of Staphylococcus aureus, Pseudomonas aeruginosa, and Candida albicans at the nanoscale level. The nBioChip is robotically printed, robustly handled, and scanned using a standard microarray reader...
May 2017: MSphere
https://www.readbyqxmd.com/read/28671260/phenotypic-and-genotypic-characterization-of-staphylococcus-aureus-isolates-in-milk-from-flocks-diagnosed-with-subclinical-mastitis
#12
A R E O Xavier, A C Almeida, C N Souza, L M V Silva, A X A Ruas, D A Sanglard, A F M Júnior, A M E Oliveira, M A S Xavier
The Staphylococcus aureus is the most common isolated microorganism in ruminant animal species diagnostic with clinical or subclinical mastitis. Dairy herds with these diseases can transfer S. aureus into the milk supply, which can lead to food poisoning in humans. The objective of this study was to evaluate the profile of antimicrobial susceptibility, the presence of femA gene, the genetic relationships among isolates of S. aureus obtained from milk originating from flocks diagnosed with subclinical mastitis in nine rural properties in the northern of Minas Gerais State...
June 29, 2017: Genetics and Molecular Research: GMR
https://www.readbyqxmd.com/read/28669650/next-generation-dna-sequencing-of-tissues-from-infected-diabetic-foot-ulcers
#13
M Malone, K Johani, S O Jensen, I B Gosbell, H G Dickson, H Hu, K Vickery
We used next generation DNA sequencing to profile the microbiome of infected Diabetic Foot Ulcers (DFUs). The microbiota was correlated to clinical parameters and treatment outcomes to determine if directed antimicrobial therapy based on conventional microbiological cultures are relevant based on genomic analysis. Patients≥18years presenting with a new Diabetic Foot Infection (DFI) who had not received topical or oral antimicrobials in the two weeks prior to presentation, were eligible for enrolment. Tissue punch biopsies were obtained from infected DFUs for analysis...
June 27, 2017: EBioMedicine
https://www.readbyqxmd.com/read/28669567/nationwide-surveillance-of-bacterial-respiratory-pathogens-conducted-by-the-surveillance-committee-of-japanese-society-of-chemotherapy-the-japanese-association-for-infectious-diseases-and-the-japanese-society-for-clinical-microbiology-in-2012-general-view-of
#14
Katsunori Yanagihara, Akira Watanabe, Nobuki Aoki, Tetsuya Matsumoto, Masaki Yoshida, Junko Sato, Tomotaro Wakamura, Keisuke Sunakawa, Junichi Kadota, Hiroshi Kiyota, Satoshi Iwata, Mitsuo Kaku, Hideaki Hanaki, Yoshinobu Ohsaki, Satoru Fujiuchi, Manabu Takahashi, Kenichi Takeuchi, Hiroaki Takeda, Hideki Ikeda, Makoto Miki, Susumu Nakanowatari, Hiroshi Takahashi, Mutsuko Utagawa, Hajime Nishiya, Sayoko Kawakami, Eriko Morino, Jin Takasaki, Kazuhisa Mezaki, Naohiko Chonabayashi, Chie Tanaka, Hideko Sugiura, Hajime Goto, Takeshi Saraya, Daisuke Kurai, Yasuhiro Katono, Rika Inose, Yoshihito Niki, Takahiro Takuma, Makoto Kudo, Shigeru Ehara, Yoshimi Sato, Hiroki Tsukada, Nobuei Watabe, Yasuo Honma, Hiroshige Mikamo, Yuka Yamagishi, Atsushi Nakamura, Minoru Ohashi, Masafumi Seki, Shigeto Hamaguchi, Masahiro Toyokawa, Yasunori Fujikawa, Noriko Mitsuno, Akira Ukimura, Takayuki Miyara, Takahito Nakamura, Keiichi Mikasa, Kei Kasahara, Koji Ui, Saori Fukuda, Akihiro Nakamura, Mika Morimura, Mikio Yamashita, Yoshio Takesue, Yasunao Wada, Keisuke Sugimoto, Nobuchika Kusano, Motoko Nose, Eiichirou Mihara, Masao Kuwabara, Masao Doi, Yaeko Watanabe, Hirokazu Tokuyasu, Satoshi Hino, Kiyoshi Negayama, Hiroshi Mukae, Toshinori Kawanami, Toshiyuki Ota, Masaki Fujita, Junichi Honda, Kazufumi Hiramatsu, Yosuke Aoki, Mami Fukuoka, Hiroki Magarifuchi, Zenzo Nagasawa, Norihito Kaku, Jiro Fujita, Futoshi Higa, Masao Tateyama
The nationwide surveillance on antimicrobial susceptibility of bacterial respiratory pathogens from the patients in Japan was conducted by Japanese Society of Chemotherapy, Japanese association for infectious diseases and Japanese society for Clinical Microbiology in 2012. The isolates were collected from clinical specimens obtained from well-diagnosed adult patients with respiratory tract infections during the period between January and December in 2012 by three societies. Antimicrobial susceptibility testing was conducted at the central reference laboratory according to the method recommended by Clinical Laboratory Standard Institutes...
June 29, 2017: Journal of Infection and Chemotherapy: Official Journal of the Japan Society of Chemotherapy
https://www.readbyqxmd.com/read/28668570/changes-in-pathogens-and-pneumococcal-serotypes-causing-community-acquired-pneumonia-in-the-netherlands
#15
Stefan M T Vestjens, Gertjan H J Wagenvoort, Jan C Grutters, Bob Meek, Arnoud F Aldenkamp, Bart J M Vlaminckx, Willem-Jan W Bos, Ger T Rijkers, Ewoudt M W van de Garde
BACKGROUND: In 2006 a 7-valent pneumococcal conjugate vaccine (PCV7) was introduced in the immunisation programme for infants in The Netherlands and replaced by PCV10 in 2011. Limited data exist about the impact of PCV on the aetiology of CAP as a whole. The aim of the present study is to describe the overall changes in microbial aetiology, pneumococcal burden (including non-bacteraemic pneumococcal pneumonia) and its serotypes in adult community-acquired pneumonia (CAP) after the introduction of these PCVs...
June 28, 2017: Vaccine
https://www.readbyqxmd.com/read/28665797/surveillance-of-bacterial-colonisation-on-contact-surfaces-in-different-medical-wards
#16
Karmen Godič Torkar, Sanja Ivić
This study was conducted to determine the bacterial colonization of some bacterial groups, including extended-spectrum β-lactamase (ESBLs) producers and methicillin-resistant Staphylococcus aureus (MRSA), on surfaces of the equipment and instruments in patient rooms and other workspaces in three different medical wards. The number of microorganisms on swabs was determined with the colony count method on selective microbiological mediums. The aerobic mesophylic microorganisms were found in 73.5 % out of 102 samples, with the average and maximum values of 2...
June 27, 2017: Arhiv za Higijenu Rada i Toksikologiju
https://www.readbyqxmd.com/read/28664201/how-do-fluorescence-spectroscopy-and-multimodal-fluorescence-imaging-help-to-dissect-the-enhanced-efficiency-of-the-vancomycin-rifampin-combination-against-staphylococcus-aureus-infections
#17
Rym Boudjemaa, Romain Briandet, Marie-Pierre Fontaine-Aupart, Karine Steenkeste
Staphylococcus aureus is one of the most frequent pathogens responsible for biofilm-associated infections. Among current clinical antibiotics, very few enable long-term successful treatment. Thus, it becomes necessary to better understand antibiotic failures and successes in treating infections in order to master the use of proper antibiotic therapies. In this context, we took benefit from a set of fluorescence spectroscopy and imaging methods, with the support of conventional microbiological tools to better understand the vancomycin-rifampin combination (in)efficiency against S...
June 30, 2017: Photochemical & Photobiological Sciences
https://www.readbyqxmd.com/read/28655298/assessment-of-staphylococcus-aureus-along-milk-value-chain-and-its-public-health-importance-in-sebeta-central-oromia-ethiopia
#18
Yodit Ayele, Fanta Desissa Gutema, Bedaso Mamo Edao, Robel Girma, Takele Beyene Tufa, Tariku Jibat Beyene, Fanos Tadesse, Mesula Geloye, Ashenafi Feyisa Beyi
BACKGROUND: Staphylococcus aureus is one of the leading causes of gastroenteritis acquired from contaminated foods such as milk and milk products. However, such information is limited in Ethiopia. A cross-sectional study was conducted to assess the contamination of milk with S. aureus and knowledge, attitudes and practices (KAP) of actors along the milk value chain in Sebeta, Central Oromia, Ethiopia. A total of 291 samples collected from dairy farms, milk collection centers (MCCs) and processing plant were examined using standard microbiological techniques...
June 27, 2017: BMC Microbiology
https://www.readbyqxmd.com/read/28648640/pulmonary-delivery-of-synergistic-combination-of-fluoroquinolone-antibiotic-complemented-with-proteolytic-enzyme-a-novel-antimicrobial-and-antibiofilm-strategy
#19
Purnima V Gupta, Abhijit M Nirwane, Tejashree Bellubi, Mangal S Nagarsenker
Bacterial resistance remains a major hindrance in treatment with antimicrobial agents. Therefore, we assessed the improved antimicrobial and antibiofilm activity of Levofloxacin (LFX) and Serratiopeptidase (SRP) combinations in in vitro microbiological studies. Further, pharmacodynamic and pharmacokinetic studies of liposomal LFX in combination with SRP (LFX liposome-SRP) were performed in S. aureus infected rats. LFX at sub-MIC with SRP eradicated >90% of the preformed biofilm. The entrapment efficiency of LFX in liposome was >80% and the co-spray dried product had MMAD <5 μ...
June 23, 2017: Nanomedicine: Nanotechnology, Biology, and Medicine
https://www.readbyqxmd.com/read/28640920/pathogen-specific-mortality-in-very-low-birth-weight-infants-with-primary-bloodstream-infection
#20
Brar C Piening, Christine Geffers, Petra Gastmeier, Frank Schwab
OBJECTIVE: Mortality in very low birth weight infants following microbiology confirmed primary bloodstream infections varies with the type of causative pathogen. Given evidence from other studies that infections with gram negative bacteria and fungi cause a higher case fatality risk. We tried to confirm this in a nation-wide multi-center trial. METHODS: A cohort of 55,465 very low birth weight infants from 242 neonatal departments participating in the German national neonatal infection surveillance system NEO-KISS was used to investigate differences in the case fatality risk of microbiology confirmed primary bloodstream infections according to individual pathogens...
2017: PloS One
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