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Title: Revelation of staphylococcal cassette chromosome mec types in methicillin-resistant Staphylococcus aureus isolates from Thailand and Vietnam
Authors: R. Lawung
L. V. Chuong
R. Cherdtrakulkiat
A. Srisarin
V. Prachayasittikul
Mahidol University
University of Medicine and Pharmacy
Keywords: Biochemistry, Genetics and Molecular Biology;Immunology and Microbiology;Medicine
Issue Date: 1-Dec-2014
Citation: Journal of Microbiological Methods. Vol.107, (2014), 8-12
Abstract: © 2014 Elsevier B.V. Methicillin resistant Staphylococcus aureus (MRSA) is highly prevalent, and its typing plays a crucial role in epidemiology and evolution in both health and community settings. Multiplex PCR and staphylococcal cassette chromosome mec (SCC. mec) typing based on mec complexes and cassette chromosome recombinase (ccr) allotypes have been developed for MRSA identification. The first of these procedures can identify 4 mec classes (A, B, C1, and E) and 2 ccr allotypes (B2 and B4) in one tube, and the second can identify mecA, mec class C2, and 3 allotypes (A1, A3, and C). Our method offers a novel means to further differentiate between the main SCC. mec types I through XI and is both highly sensitive (detectable up to 0.3ηg DNA) and specific (100%). Several SCC. mec types (I, III, IV, V and a non-typeable group) were found in 66 MRSA isolates obtained from Ho Chi Minh City, Vietnam and Nakhon Pathom, Thailand. SCC. mec type III was highly predominant in both regions. The designed assay is rapid, convenient, flexible, and reliable. Therefore, this assay is suitable for the high-throughput screening of the main SCC. mec types of MRSA isolates.
ISSN: 18728359
Appears in Collections:Scopus 2011-2015

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