29 August 2008
Molecular study of methicillin-resistant Staphylococcus aureus isolates at a neonatal high-risk unit in Merida, Venezuela
Elsa VelazcoABCDEFG, Beatriz NievesAE, Ana VindelDF, Evelyn AlviarezBF, Betty GutierrezB, Guillermo BianchiCMed Sci Monit 2008; 14(9): PI25-31 :: ID: 867945
Abstract
Background
Methicillin-resistant Staphylococcus aureus (MRSA) is a multiresistant microorganisms which holds first place in the world as a nosocomial pathogen. Special attention has therefore been directed to specific nosocomial surveillance systems and strict infection control measures for this microorganism in which the microbiological laboratory plays an important role by applying phenotypic and genotypic methods that permit establishing their epidemiological relationship especially in hospital outbreaks. In the present study the general objective was to study MRSA strains isolated from neonates with nosocomial infections and from healthcare personnel working in the Neonatal High Risk Unit (NHRU) of the Andes University Hospital Autonomous Institute (AUHAI) in Mérida, Venezuela.
Material and Method
Forty-three S. aureus isolates were analyzed by phenotypic and genotypic methods.
Results
In these strains, antibiotypes resistant to oxacillin, gentamicin, erythromycin, and tobramycin predominated (50%). The greater percentage of MRSA strains isolated from health personnel as well as two neonates were described as pulse types Ia and Ib, belonging to phage group II, containing type IV SCCmecA and resistant to macrolides and aminoglycosides and sensitive to clindamycin and trimethoprim-sulfamethoxazole.
Conclusions
This is the first reported case of SCCmecA type IV MRSA found in the NHRU of the AUHAI.
Keywords: Methicillin Resistance, Staphylococcal Infections - prevention & control, Intensive Care Units, Neonatal, Methicillin - therapeutic use, Infectious Disease Transmission, Professional-to-Patient, Infection Control - methods, Infant, Newborn, Venezuela - epidemiology, Staphylococcus aureus - metabolism, Cross Infection - microbiology, Anti-Bacterial Agents - therapeutic use
Editorial
01 April 2024 : Editorial
Editorial: Forty Years of Waiting for Prevention and Cure of HIV Infection – Ongoing Challenges and Hopes for Vaccine Development and Overcoming Antiretroviral Drug ResistanceDOI: 10.12659/MSM.944600
Med Sci Monit 2024; 30:e944600
In Press
15 Apr 2024 : Laboratory Research
The Role of Copper-Induced M2 Macrophage Polarization in Protecting Cartilage Matrix in OsteoarthritisMed Sci Monit In Press; DOI: 10.12659/MSM.943738
07 Mar 2024 : Clinical Research
Knowledge of and Attitudes Toward Clinical Trials: A Questionnaire-Based Study of 179 Male Third- and Fourt...Med Sci Monit In Press; DOI: 10.12659/MSM.943468
08 Mar 2024 : Animal Research
Modification of Experimental Model of Necrotizing Enterocolitis (NEC) in Rat Pups by Single Exposure to Hyp...Med Sci Monit In Press; DOI: 10.12659/MSM.943443
18 Apr 2024 : Clinical Research
Comparative Analysis of Open and Closed Sphincterotomy for the Treatment of Chronic Anal Fissure: Safety an...Med Sci Monit In Press; DOI: 10.12659/MSM.944127
Most Viewed Current Articles
17 Jan 2024 : Review article
Vaccination Guidelines for Pregnant Women: Addressing COVID-19 and the Omicron VariantDOI :10.12659/MSM.942799
Med Sci Monit 2024; 30:e942799
14 Dec 2022 : Clinical Research
Prevalence and Variability of Allergen-Specific Immunoglobulin E in Patients with Elevated Tryptase LevelsDOI :10.12659/MSM.937990
Med Sci Monit 2022; 28:e937990
16 May 2023 : Clinical Research
Electrophysiological Testing for an Auditory Processing Disorder and Reading Performance in 54 School Stude...DOI :10.12659/MSM.940387
Med Sci Monit 2023; 29:e940387
01 Jan 2022 : Editorial
Editorial: Current Status of Oral Antiviral Drug Treatments for SARS-CoV-2 Infection in Non-Hospitalized Pa...DOI :10.12659/MSM.935952
Med Sci Monit 2022; 28:e935952