Journal
JOURNAL OF CLINICAL MICROBIOLOGY
Volume 58, Issue 5, Pages -Publisher
AMER SOC MICROBIOLOGY
DOI: 10.1128/JCM.02088-19
Keywords
high-resolution melt curve analysis; MRSA; PCR
Categories
Funding
- Graham Centre for Agricultural Innovation [40825]
- School of Animal and Veterinary Sciences, Charles Sturt University [40702]
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Infections due to methicillin-resistant Staphylococcus aureus (MRSA) are present worldwide and represent a major public health concern. The capability of PCR followed by high-resolution melt (HRM) curve analysis for the detection of community-associated and livestock-associated MRSA strains and the identification of staphylococcal protein A (spa) locus was evaluated in 74 MRSA samples which were isolated from the environment, humans, and pigs on a single piggery. PCR-HRM curve analysis identified four spa types among MRSA samples and differentiated MRSA strains accordingly. A nonsubjective differentiation model was developed according to genetic confidence percentage values produced by tested samples, which did not require visual interpretation of HRM curve results. The test was carried out at different settings, and result data were reanalyzed and confirmed with DNA sequencing. PCR-HRM curve analysis proved to be a robust and reliable test for spa typing and can be used as a tool in epidemiological studies.
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