Department of Clinical Microbiology, Christian Medical College, Vellore 632004, Tamil Nadu, India.
Department of Clinical Microbiology, Christian Medical College, Vellore 632004, Tamil Nadu, India.
J Glob Antimicrob Resist. 2017 Mar;8:169-171. doi: 10.1016/j.jgar.2016.12.008. Epub 2017 Feb 23.
Here we report the whole-genome shotgun sequence of six methicillin-resistant Staphylococcus aureus (MRSA) showing reduced susceptibility to both vancomycin and teicoplanin. The typical Indian community-acquired MRSA (CA-MRSA) clone ST772-MRSA-V-t657 was the most common genotype (3/6; 50%), followed by ST672-MRSA-IV (2/6; 33%) and ST22-MRSA-IV (1/6; 17%). All strains harboured a mutation in the tcaRAB operon, vraSR, graSR and/or rpoB genes, which are frequently mutated determinants in a heteroresistant vancomycin-intermediate S. aureus (hVISA) phenotype.
我们在此报告了 6 株耐甲氧西林金黄色葡萄球菌(MRSA)的全基因组鸟枪法测序结果,这些菌株对万古霉素和替考拉宁的敏感性均降低。最常见的基因型是典型的印度社区获得性 MRSA(CA-MRSA)克隆 ST772-MRSA-V-t657(3/6;50%),其次是 ST672-MRSA-IV(2/6;33%)和 ST22-MRSA-IV(1/6;17%)。所有菌株均携带 tcaRAB 操纵子、vraSR、graSR 和/或 rpoB 基因突变,这些突变是异质性万古霉素中介金黄色葡萄球菌(hVISA)表型中经常发生突变的决定因素。