Spa gene-based molecular typing of nasal methicillin-susceptible staphylococcus aureus from patients and health-care workers in a dialysis center in southeast Iran.

This study was conducted to determine the frequency of S. aureus nasal carriage in hemodialysis patients (HD) and health-care workers (HCW) at the main dialysis center of Bam city, located in southeast of Iran. In this cross-sectional study, a total of 52 nasal swabs were obtained from health-care workers and hemodialysis patients to detect methicillin-sensitive S. aureus (MSSA) isolates. The resistance to different antibacterial agents was determined by disk diffusion method. Also, Panton-Valentine Leukocidin (PVL) - encoding gene as well as Staphylococcal protein A (spa) type were determined. The nasal carriage rate of S. aureus was found to be 24.4% and 18.8% in patients on hemodialysis and health-care workers, respectively. Among identified isolates, no methicillin-resistant S. aureus (MRSA) was found. Only two MSSA isolates (16.7%) were resistant to trimethoprim/sulfamethoxazole. One isolate (8.6%) was positive for pvl gene. Moreover, 8 spa types were found. According to BURP analysis, six out of the 12 S. aureus isolates (50%) belonged to the same clone, indicating a prevalence of a major clone among MSSA in carriage, including patients and HCW. Mupirocin is still the appropriate drug for reducing nasal colonization in our setting. Accumulation of isolates from patients and staff in one spa clonal complex is alarming for the necessity of more serious infection control in this center. Therefore, it is necessary to screen patients and health-care workers as a health ...
Source: Pathogens and Global Health - Category: International Medicine & Public Health Tags: Pathog Glob Health Source Type: research

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Abstract Patients with end-stage renal disease are susceptible to infection, particularly methicillin-resistant Staphylococcus aureus (MRSA). Although MRSA-related mortality and morbidity have been studied, methicillin-sensitive Staphylococcus aureus (MSSA) has not been investigated to the same degree. Five hundred and seventy-eight chronic hemodialysis patients were followed up retrospectively for 18 months. Routine screening for MRSA and MSSA was instigated. Two hundred and eighty-eight patients (49%) had at least one positive MSSA or MRSA swab. There was no statistical difference in age, Charlson index, diabete...
Source: Saudi Journal of Kidney Diseases and Transplantation - Category: Urology & Nephrology Authors: Tags: Saudi J Kidney Dis Transpl Source Type: research
The role of the host in development of persistent methicillin-resistant Staphylococcus aureus (MRSA) bacteremia is not well understood. A cohort of prospectively enrolled patients with persistent methicillin-resistant S. aureus bacteremia (PB) and resolving methicillin-resistant S. aureus bacteremia (RB) matched by sex, age, race, hemodialysis status, diabetes mellitus, and presence of...
Source: Proceedings of the National Academy of Sciences - Category: Science Authors: Tags: PNAS Plus Source Type: research
Khaled M. A. Elzorkany, Asmaa M Elbrolosy, Eman H SalemIndian Journal of Nephrology 2019 29(4):282-287 Hemodialysis (HD) patients are at risk for developing serious infections. Methicillin- resistant Staphylococcus aureus (MRSA) is one of the most prevalent pathogens in healthcare facilities with a major threat to the medical community. We aimed to determine the prevalence of MRSA colonization among patients and medical staff members in a HD Unit and determine efficacy of mupirocin as a decolonizing agent. This cross-sectional study enrolled 250 patients and 35 health care providers of a HD unit. Nasal and hand swabs were...
Source: Indian Journal of Nephrology - Category: Urology & Nephrology Authors: Source Type: research
Abstract The use of a drug administration plan and therapeutic drug monitoring (TDM) based on pharmacokinetic-pharmacodynamic (PK-PD) analysis is important for the effective use of antimicrobial agents to treat infections. We focused on the use of beta-lactam agents, anti-methicillin-resistant Staphylococcus aureus (MRSA) agents, and an antifungal agent as antimicrobial agents and examined their efficacy in patients under special clinical conditions from the viewpoint of safety and TDM. Our PK-PD analysis of the use of an administration plan to set an optimum serum level for beta-lactam agents or anti-MRSA drugs f...
Source: Yakugaku Zasshi : Journal of the Pharmaceutical Society of Japan - Category: Drugs & Pharmacology Authors: Tags: Yakugaku Zasshi Source Type: research
ConclusionsA major MRSA lineage, CC8-ST239-MRSA-SCCmec type III-spa type t037, is noted among bacteremic MRSA isolates. No disease-specific virulent genes can be identified.
Source: Journal of Microbiology, Immunology and Infection - Category: Microbiology Source Type: research
CONCLUSIONS: A major MRSA lineage, CC8-ST239-MRSA-SCCmec type III-spa type t037, is noted among bacteremic MRSA isolates. No disease-specific virulent genes can be identified. PMID: 30686615 [PubMed - as supplied by publisher]
Source: Journal of Microbiology, Immunology, and Infection - Category: Microbiology Authors: Tags: J Microbiol Immunol Infect Source Type: research
ConclusionOverall, a substantial proportion of patients visiting the ED and HCWs harbored CA-MRSA, mostly ST59 strains, in their nares. It is noteworthy that MRSA ST45 strains supplanted ST239 as the second leading nasal MRSA colonization strain in our study.
Source: Journal of Microbiology, Immunology and Infection - Category: Microbiology Source Type: research
This report demonstrates TDC management in a patient with TDC-related MRSA bacteremia and the importance of investigating a metastatic infection to a calcified artery if bacteremia persists.
Source: CEN Case Reports - Category: Urology & Nephrology Source Type: research
Vancomycin is an antibiotic that is often prescribed for infections caused by methicillin-resistant Staphylococcus aureus (MRSA). This antibiotic is predominantly renally cleared, and in patients with end-stage renal disease (ESRD) clearance is reduced. Many patients with ESRD will require renal replacement therapy, which includes haemodialysis (HD). However, to complicate matters, vancomycin is readily cleared by high-flux dialysers (haemodialysis filters) [1 –6]. This drastically affects the amount of vancomycin available in the body to treat an infection.
Source: International Journal of Antimicrobial Agents - Category: Drugs & Pharmacology Authors: Source Type: research
We report here 12 cases of IgA-dominant IRGN seen over a period of 5 years from a single center. Clinical features, biopsy findings, treatment, and outcomes were analyzed. Out of 12 patients, eight were males. The mean age of presentation was 52.4 ± 21 years. Skin was the most common site of infection seen in six patients. Gross hematuria was seen in 4 patients and 11 had nephrotic proteinuria. Eleven had low serum C3. Only two patients had diabetes. Methicillin-resistant Staphylococcus aureus (MRSA) was the most common organism isolated in six patients. Most common histopathology was crescentic glomerulonephritis see...
Source: Indian Journal of Nephrology - Category: Urology & Nephrology Authors: Source Type: research
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