نتایج جستجو برای: تیپ های sccmec

تعداد نتایج: 480419  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس - دانشکده علوم پزشکی 1392

استافیلوکوکوس اورئوس عامل طیف وسیعی از عفونت های چرکی نظیر لژیون های سطح پوست، ادراری، سپتیسمی، پنومونی، تورم مفاصل، مننژیت، اندوکاردیت و مسمومیت غذایی است. تشکیل بیوفیلم از عوامل بیماریزایی مهم بوده و باکتری را در برابر شرایط محیطی نامساعد و سیستم ایمنی میزبان محافظت می نماید. مقاومت آنتی بیوتیکی، مخصوصا" مقاومت به متی سیلین سبب مشکلات درمانی فوق العاده شده است. در این تحقیق فراوانی ژن های دخی...

Journal: :Journal of the Pediatric Infectious Diseases Society 2015
Sonya L Heltshe Lisa Saiman Elena B Popowitch Melissa B Miller Margaret Kloster Valeria Thompson Thomas W Ferkol Wynton C Hoover Michael S Schechter Marianne S Muhlebach

BACKGROUND Methicillin-resistant Staphylococcus aureus (MRSA) infects ∼25% of patients with cystic fibrosis (CF) in the United States. We hypothesized that health-related outcomes differed between healthcare-associated (staphylococcal cassette chromosome mec [SCCmec] II) vs community-associated (SCCmec IV) MRSA strains in patients chronically infected with CF. METHODS At 7 CF centers, MRSA is...

Journal: :Journal of clinical microbiology 2005
Wei Qi Miriam Ender Frances O'Brien Alexander Imhof Christian Ruef Nadine McCallum Brigitte Berger-Bächi

The majority of methicillin-resistant Staphylococcus aureus (MRSA) isolates, recovered in 2003 at the Department of Medical Microbiology in Zürich, Switzerland, belonged to major clones that are circulating worldwide. Staphylococcal cassette chromosome mec type IV (SCCmec-IV), harbored by half of the isolates, was found in sequence type 217 (ST 217), which is an allelic variant of epidemic MRSA...

Journal: :Journal of clinical microbiology 2006
Abdullah Kilic Haijing Li Charles W Stratton Yi-Wei Tang

Antimicrobial susceptibility patterns, Panton-Valentine leukocidin (PVL) occurrence, and staphylococcal cassette chromosome mec (SCCmec) types in methicillin-resistant Staphylococcus aureus (MRSA) strains isolated from children and adults at Vanderbilt University Medical Center during a 12-month period were evaluated. A total of 1,315 MRSA isolates were collected, of which 748 (36.7%) were reco...

2009
Lisa M. Koonin Martin S. Cetron Benjamin J. Cowling Eric H.Y. Lau Gabriel M. Leung

primers they developed themselves. In addition, Southern hybridization was done. The results showed that SCCmec III ST398 MRSA isolates should be typed as SCCmec type V. In this conclusion we agree with the authors. It seems clear that Zhang’s method incorrectly identifi ed 4 of the animal-related ST398 isolates as SCCmec type III instead of SCCmec type V. Whether all ST398 MRSA are SCCmec type...

2012
Hee-Chang Jang Seung-Ji Kang Su-Mi Choi Kyung-Hwa Park Jong-Hee Shin Hyon E. Choy Sook-In Jung Hong Bin Kim

BACKGROUND Dysfunction of agr, with reduced susceptibility or hetero-resistance to vancomycin, is thought to be associated with a worse outcome of methicillin-resistant Staphylococcus aureus (MRSA) bacteremia (MRSAB). However, the difference in agr dysfunction according to the SCCmec type in MRSA infection is undetermined. We compared the prevalence of agr dysfunction, reduced vancomycin suscep...

Journal: :The Brazilian journal of infectious diseases : an official publication of the Brazilian Society of Infectious Diseases 2008
Cristina Reinert John Anthony McCulloch Shinya Watanabe Teruyo Ito Keiichi Hiramatsu Elsa Masae Mamizuka

Methicillin-resistant Staphylococcus aureus (MRSA) commonly causes infection in hospitalized patients. Since its appearance in the 1960s, the SCCmec has evolved throughout the years into 5 different types (I-V), each bearing a different set of genes. Infection with MRSA SCCmec types I, II or III is almost exclusively restricted to hospitalised patients. However, recently, community acquired MRS...

2016
Wei-Chun Hung Tsai-Wen Wan Yu-Chia Kuo Tatsuo Yamamoto Jui-Chang Tsai Yu-Tzu Lin Po-Ren Hsueh Lee-Jene Teng

Clonal complex 59 (CC59) Staphylococcus aureus in Taiwan includes both methicillin-susceptible S. aureus (MSSA) and methicillin-resistant S. aureus (MRSA). As the most prominent community-associated MRSA (CA-MRSA) in Taiwan, CC59 has two major clones characterized as PVL-negative SCCmec IV (carrying the staphylococcal cassette chromosome mec IV but Panton-Valentine leukocidin-negative) and PVL-...

2010
Jiun-Ling Wang Jann-Tay Wang Shey-Ying Chen Yee-Chun Chen Shan-Chwen Chang

BACKGROUND Molecular epidemiological definitions that are based on staphylococcal cassette chromosome mec (SCCmec) typing and phylogenetic analysis of methicillin-resistant Staphylococcus aureus (MRSA) isolates are considered a reliable way to distinguish between healthcare-associated MRSA (HA-MRSA) and community-associated MRSA (CA-MRSA). However, there is little information regarding the clin...

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