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Title: Antimicrobial resistance and molecular characterization of methicillin-resistant staphylococcus aureus isolated from slaughtered pigs and pork in the central region of Thailand
Authors: Wimonrat Tanomsridachchai
Kanjana Changkaew
Ruchirada Changkwanyeun
Watsawan Prapasawat
Apiradee Intarapuk
Yukari Fukushima
Nattapong Yamasamit
Thoko Flav Kapalamula
Chie Nakajima
Orasa Suthienkul
Yasuhiko Suzuki
Hokkaido University
Mahidol University
Thammasat University
Mahanakorn University of Technology
Keywords: Biochemistry, Genetics and Molecular Biology;Immunology and Microbiology;Medicine;Pharmacology, Toxicology and Pharmaceutics
Issue Date: 1-Feb-2021
Citation: Antibiotics. Vol.10, No.2 (2021), 1-12
Abstract: © 2021 by the authors. Licensee MDPI, Basel, Switzerland. Methicillin-resistant Staphylococcus aureus (MRSA) have been a major public health con-cern in humans. Among MRSA, livestock-associated (LA)-MRSA strains have always been associated with exposure to livestock or their products and have emerged in different countries globally. Although studies have identified LA-MRSA from healthy pigs and pork in Thailand, prevalence in slaughtered pigs is still unknown. In addition, there are few reports on the epidemiology and molecular characteristics of LA-MRSA in Thailand. Hence, this is the first report investigating the epidemiology and molecular characteristics of MRSA in individual slaughtered pigs and pork in Thai-land. A total of 204 nasal swab and 116 retailed pork samples were collected from three slaughterhouses and four fresh markets, respectively. Individual samples were used for screening for MRSA and obtained isolates were examined for drug-resistance profiling for 12 antimicrobial agents of 10 drug classes. In addition, SCCmec typing and multi-locus sequence typing were conducted to obtain genotype profiles. MRSA were isolated from 11 and 52 nasal swab and pork samples, respectively. The prevalence was significantly higher in the pork than in the nasal swab samples (p-value < 0.05). A high prevalence of ST9-SCCmecIX and ST398-SCCmecV with high-level antimicrobial resistance from markets and slaughterhouses indicated the spreading of MRSA with these genotypes in the Thai swine processing chains and suggested the need for further investigation to determine a con-trol.
ISSN: 20796382
Appears in Collections:Scopus 2021

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