Phenotypic characterization of Macrolide-Lincosamide-Streptogramin B resistance in Staphylococcus aureus
| Autor: | Pradeep Madala Sobhana Surya, Vishnuvardhana Rao Kakumanu, Saritha Yarava, Giridhar Kumar Modukuru |
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| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
0301 basic medicine
staphylococcus aureus business.industry 030106 microbiology Macrolide lincosamide streptogramin d-test biochemical phenomena metabolism and nutrition medicine.disease_cause Applied Microbiology and Biotechnology Phenotype inducible clindamycin resistance mlsb phenotypes Microbiology QR1-502 03 medical and health sciences 0302 clinical medicine Staphylococcus aureus Medicine mssa mrsa 030212 general & internal medicine business Biotechnology |
| Zdroj: | Journal of Pure and Applied Microbiology, Vol 15, Iss 2, Pp 689-694 (2021) |
| ISSN: | 0973-7510 |
| Popis: | Staphylococcus aureus (S.aureus) is a prevalent organism causing infections in the community and hospital. A variety of antibiotics are used, including the Macrolide-Lincosamide-StreptograminB (MLSB) family of antibiotics in which clindamycin is the preferred agent. Widespread use of these antibiotics leads to resistance to these MLSB antibiotics; a D-test can characterize the different MLSB phenotypes. This study was taken up with an objective to perform a double disc diffusion test for detecting different phenotypes in S.aureus with particular reference to inducible clindamycin resistance. Out of a total of 174(100%) strains of S.aureus, 98(56.32%) were MRSA, and 76(43.68%) were MSSA. All isolates were tested by D-test. A total of 47(27.01%) were of cMLSB phenotype, 31(17.82%) were of iMLSB phenotype, and 96(55.17%) were of MS phenotype. The majority of MRSA strains were cMLSB phenotype(76.60%) and iMLSB phenotype (64.52%) in comparison to MSSA isolates. Although iMLSB phenotypes are present in both MRSA and MSSA, iMLSB was more in MRSA isolates. Appropriate susceptibility data is essential for a clinician to start clindamycin therapy to prevent therapeutic failures with inducible MLSB resistance in S.aureus isolates. It will be appropriate for all the clinical laboratories to report inducible Clindamycin resistance in S.aureus strains (both MRSA and MSSA), for which D-test is a reliable testing method. |
| Databáze: | OpenAIRE |
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