Increasing emergence of staphylococci resistant to pleuromutilins, lincosamides, and streptogramin A (PLS) and isolated from humans and pets is a growing public health concern worldwide. Currently, there was only one published study regarding one of the PLS genes, (A) detected in staphylococci isolated from cat. In this study, eleven pleuromutilin-resistant staphylococci from pets and two from their owners were isolated and further characterized for their antimicrobial susceptibilities, plasmid profiles, genotypes, and genetic context of the PLS resistance genes. The gene (A) identified in 11 staphylococcal isolates was found for the first time in , and . Moreover, these 11 isolates shared the identical regions flanking the (A) gene located in the chromosomal DNA. Two isolates from a cat and its owner carried similar (A) plasmids and displayed indistinguishable PFGE patterns. A novel chromosomal multidrug resistance genomic island (MDRGI) containing 13 resistance genes, including (E), was firstly identified in . In addition, (A), (A), and (E) were for the first time identified in staphylococcal isolates originating from pet animals. The plasmids, chromosomal DNA region, and MDRGI associated with the PLS resistance genes (A), (A), (A), and (E) are present in staphylococci isolated from pets and humans and present significant challenges for the clinical management of infections by limiting therapeutic options.
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| http://dx.doi.org/10.3389/fmicb.2017.00234 | DOI Listing |
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