Genetic Determinants of Resistance to Fusidic Acid Among Staphylococcus aureus Isolates in Jordan

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Aldasouqi Rasha; Abu Qatouseh Luay F.; Badran Eman F.; Alhaj Mahmoud Sameer A.; Darwish Rula Madhat

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Journal: Jundishapur Journal of Microbiology Year:2019 | Volume:12 | Issue:3 Page(s): 0-0

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Title

Genetic Determinants of Resistance to Fusidic Acid Among Staphylococcus aureus Isolates in Jordan

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Keywords

Staphylococcus aureus

Fusidic Acid

Drug Resistance

fusB and fusC Genes

Abstract

Background: Fusidic Acid-resistant Staphylococcus aureus (FRSA) has been reported in many countries to have a remarkable difference in resistance determinants. Fusidic Acid resistance is very important because it might lead to the failure of topical treatment, especially when it is used as empiric therapy. In addition, its resistance might be linked to other antibiotic resistances. The overall rate of Fusidic Acid resistance is still relatively low. However, there is an increase in the prevalence of clinical isolates of FRSA worldwide. Objectives: We aimed to characterize FRSA isolated from Jordanian patients and evaluate the occurrence of the genetic resistance caused by fusB and fusC. Methods: We conducted a prospective cross-sectional study to determine the prevalence and the resistance pattern of S. aureus to Fusidic Acid among Jordanian patients and healthy people. Staphylococcus aureus clinical isolates (n = 113) obtained from patients admitted to Prince Hamzah Hospital between February and July 2015 were compared with isolates (n = 288) obtained from healthy subjects. Conventional methodswere used for the identification of S. aureusandfurther confirmations were doneby the existence of the thermonuclease gene using polymerase chain reaction (PCR). Screenings of antibiotic resistance were performed using the disc diffusion method. The minimum inhibitory concentrations were calculated using the E-test. PCR was used to detect the presence of resistant genes. Results: The FRSA frequency was significantly higher among clinical isolates (31. 9%) than among isolates from healthy subjects (1%) and in methicillin-resistant Staphylococcus aureus (MRSA) (66. 7%) than in methicillin-sensitive Staphylococcus aureus (MSSA) (33. 3%). Of the FRSA isolates, 38. 9% and 16. 7% carried fusB and fusC, respectively, and they displayed low resistance compared to non-fusB, non-fusC FRSA isolates. The rate of FRSA was significantly (P < 0. 05) higher among MRSA than among MSSA isolates (n = 24, 66. 7% and n = 12, 33. 3%, respectively). We found no association between Fusidic Acid determinants among MRSA and MSSA (P > 0. 05). Conclusions: A high occurrence of FRSA was detected in Jordanian clinical isolates of S. aureus, particularly among MRSA. Moreover, fusBwasthe predominant resistance determinant, with low-level resistance. Basedonour findings, Fusidic Acid susceptibility testing is strongly recommended in medical laboratories. The restricted use of Fusidic Acid is advised.

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APA: Copy

Aldasouqi, Rasha, Abu Qatouseh, Luay F., Badran, Eman F., Alhaj Mahmoud, Sameer A., & Darwish, Rula Madhat. (2019). Genetic Determinants of Resistance to Fusidic Acid Among Staphylococcus aureus Isolates in Jordan. JUNDISHAPUR JOURNAL OF MICROBIOLOGY (JJM), 12(3), 0-0. SID. https://sid.ir/paper/317830/en

Vancouver: Copy

Aldasouqi Rasha, Abu Qatouseh Luay F., Badran Eman F., Alhaj Mahmoud Sameer A., Darwish Rula Madhat. Genetic Determinants of Resistance to Fusidic Acid Among Staphylococcus aureus Isolates in Jordan. JUNDISHAPUR JOURNAL OF MICROBIOLOGY (JJM)[Internet]. 2019;12(3):0-0. Available from: https://sid.ir/paper/317830/en

IEEE: Copy

Rasha Aldasouqi, Luay F. Abu Qatouseh, Eman F. Badran, Sameer A. Alhaj Mahmoud, and Rula Madhat Darwish, “Genetic Determinants of Resistance to Fusidic Acid Among Staphylococcus aureus Isolates in Jordan,” JUNDISHAPUR JOURNAL OF MICROBIOLOGY (JJM), vol. 12, no. 3, pp. 0–0, 2019, [Online]. Available: https://sid.ir/paper/317830/en

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