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Abstract
This study aimed to evaluate the efficacy of magnetic nanocomposite of cefotax against MRSA. A total of 190 samples were collected from milk, farm personnel and different environmental components from the dairy farm under the study to isolate S. aureus. Cefotax based magnetic nanoparticles was synthetized by the adsorption method and marked using Fourier-transform infrared spectrum (FT-IR), and X-ray diffraction (XRD), then it was characterized using Scanning and Transmission Electron Microscope (SEM and TEM). The obtained results revealed that number of positive samples of S. aureus isolation were 63 (33.1%), mainly from feed manger followed by milk machine swabs (60.0 and 53.3%, respectively) at X2 = 48.83 and P < 0.001. Obtained isolates were identified biochemically and by using molecular assays (PCR), also mec A gene responsible for resistance to cefotax was detected. Testing the sensitivity of 63 isolates of S. aureus showed variable degree of resistance to different tested antibiotics and significant sensitivity to cefotax based magnetic nanoparticles at P < 0.05. It was concluded that dairy environment might act a potential source for transmission of MRSA between human and animal populations. In addition, cefotax based magnetic nanoparticles verified an extreme antimicrobial efficacy against MRSA.
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Details
1 Beni-Suef University, Department of Hygiene, Zoonoses and Epidemiology, Faculty of Veterinary Medicine, Beni-Suef, Egypt (GRID:grid.411662.6) (ISNI:0000 0004 0412 4932)
2 Beni-Suef University, Associate professor of Pharmacology, Department of Pharmacology, Faculty of Veterinary Medicine, Beni-Suef, Egypt (GRID:grid.411662.6) (ISNI:0000 0004 0412 4932)
3 Beni-Suef University, Department of Chemistry, Faculty of Science, Beni-Suef, Egypt (GRID:grid.411662.6) (ISNI:0000 0004 0412 4932)
4 Beni-Suef University, Department of Materials Science and Nanotechnology, Faculty of Postgraduate Studies for Advanced Sciences, Beni-Suef, Egypt (GRID:grid.411662.6) (ISNI:0000 0004 0412 4932)