Rates of Carriage of Methicillin-Resistant and Methicillin-Susceptible Staphylococcus aureus in an Outpatient Population

  title={Rates of Carriage of Methicillin-Resistant and Methicillin-Susceptible Staphylococcus aureus in an Outpatient Population},
  author={Julie R. Kenner and Tasha O'Connor and Nicholas A Piantanida and Joel Fishbain and Bardwell Eberly and Helen B Viscount and Catherine F. T. Uyehara and Duane R. Hospenthal},
  journal={Infection Control \&\#x0026; Hospital Epidemiology},
  pages={439 - 444}
Abstract Objectives: To assess the prevalence of and the clinical features associated with asymptomatic Staphylococcus aureus colonization in a healthy outpatient population, and to compare the characteristics of colonizing methicillin-resistant S. aureus (MRSA) strains with those of strains causing infection in our community and hospital. Setting: Outpatient military clinics. Methods: Specimens were obtained from the nares, pharynx, and axillae of 404 outpatients, and a questionnaire was… 
Investigation of colonization with methicillin-resistant and methicillin-susceptible Staphylococcus aureus in an outpatient population in Turkey.
Investigation of methicillin-resistant and methiillin-susceptible S. aureus colonization in nasal and axillary swabs obtained from patients without a history of hospitalization and healthcare workers chosen as a control group found both had MRSA and had low rates of carriers.
This study confirmed the presence of CA-MRSA in Qazvin and determined the prevalence of community-acquired methicillin-resistant Staphylococcus aureus and also the colonization-associated risk factors.
Prevalence and characteristics of community carriage of methicillin-resistant Staphylococcus aureus in Malta
Descriptive epidemiology of nasal carriage of Staphylococcus aureus and methicillin-resistant Staphylococcus aureus among patients admitted to two healthcare facilities in Algeria.
The findings provide also a picture of the MRSA strains circulating in the community in this geographic area and can be useful as a guide for implementing screening and control procedures against S. aureus/MRSA in the Algerian healthcare facilities.
Prevalence of methicillin-resistant and methicillin-sensitive Staphylococcus aureus nasal colonization among patients at the time of admission to the hospital
The screening of every new admission would not be cost effective, but patients transferred form other institutions should be screened for MRSA, as MRSA nasal colonization of patients on admission to hospital is low in this region.
Prevalence of and Risk Factors for Methicillin-Resistant Staphylococcus aureus (MRSA) Nasal Colonization in HIV-Infected Ambulatory Patients
The prevalence of MRSA nasal colonization was relatively high compared with prior studies; axillary colonization was rare; Trimethoprim-sulfamethoxazole seemed to be protective ofMRSA colonization.
Methicillin-resistant Staphylococcus aureus (MRSA) nares colonization at hospital admission and its effect on subsequent MRSA infection.
Identifying MRSA colonization at admission could target a high-risk population that may benefit from interventions to decrease the risk for subsequent MRSA infection.
A novel multiplex PCR-based tool of typing strains of Staphylococcus aureus
A novel typing technique was developed for S. aureus, based on single nucleotide polymorphism variations in and around SmaI-restriction sites, which proved to be a useful tool for providing reliable epidemiological information for the investigation of clinical staphylococcal outbreaks and SmaImultiplex PCR, which showed high discriminatory power and reproducibility.
Epidemiology of methicillin-resistant Staphylococcus aureus (MRSA) nasal colonization among patients and healthcare workers in a Portuguese hospital: a pre-intervention study toward the control of MRSA.
Investigation of the epidemiology of nasal colonization with methicillin-resistant Staphylococcus aureus in patients and healthcare workers in two wards with a high frequency of MRSA isolation at Hospital Geral de Santo António, Portugal found nurses and nurse aids were the HCW categories with the highest risk of becoming colonized with MRSA over time.
Prevalence of Nasal Colonization Among Patients With Community-Associated Methicillin-Resistant Staphylococcus aureus Infection and Their Household Contacts
The frequency of CA- MRSA colonization among household members of patients with CA-MRSA infections is higher than rates reported among the general population, and among colonized household members, only half of the MRSA strains were related to the patients' infective isolate.


Carriage of Methicillin-Resistant Staphylococcus Aureus at Hospital Admission
MRSA carriage on admission to the hospital may be an increasing and underestimated problem, and further studies are needed to develop and validate a sensitive and specific prediction rule.
Prevalence of methicillin-resistant and methicillin-susceptible Staphylococcus aureus in the community.
MRSA colonization is not ubiquitous in persons without predisposing risk outside of the health care environment, and bacterial competition and a lack of strong selection may limit the community spread of MRSA.
Methicillin-resistant Staphylococcus aureus as a community organism.
Most community MRSA isolate studied had distinct PFGE patterns, as did many nosocomial MRSA isolates, and multiple MRSA strains were demonstrated among both community and hospital isolates.
Prospective study of infection, colonization and carriage of methicillin-resistantStaphylococcus aureus in an outbreak affecting 990 patients
Auto-infection from nasal carriage or cross- Infection, probably via staff hands, seemed to be the most common mode of acquisition of MRSA infections in patients affected by an outbreak of methicillin-resistant Staphylococcus aureus.
Methicillin-resistant and borderline methicillin-resistant asymptomatic Staphylococcus aureus colonization in children without identifiable risk factors.
Findings indicate that MRSA and BRSA isolates are circulating in the community and that MR SA isolates is no longer confined to children with frequent contact with a health care environment.
Efficient detection and long-term persistence of the carriage of methicillin-resistant Staphylococcus aureus.
It is indicated that the majority of readmitted carriers harbor MRSA for > 3 years and that, in this population, culture of the anterior nares alone (with culture of wound or sputum, when present) is a valid and efficient method for the detection of persistent MRSA carriage.
The Evolving Epidemiology of Methicillin-Resistant Staphylococcus aureus at a University Hospital
An increase in community acquisition of methicillin-resistant Staphylococcus aureus is suggested, and pulsed-field gel electrophoresis (PFGE) demonstrated heterogeneity of MRSA isolates from both the community and the hospital setting.
Nosocomial Transmission of Methicillin-Resistant Staphylococcus aureus: A Blinded Study to Establish Baseline Acquisition Rates
Most patients colonized with MRSA were identified on admission samples, and surveillance cultures of patients admitted may help to prevent MRSA transmission and infection.
Community-acquired methicillin-resistant Staphylococcus aureus in hospitalized adults and children without known risk factors.
  • E. Gorak, S. Yamada, J. Brown
  • Medicine, Biology
    Clinical infectious diseases : an official publication of the Infectious Diseases Society of America
  • 1999
In this population, the majority of community-acquired MRSA infections occurred in previously healthy individuals without characteristics suggestive of MRSA transmission, and patients from patients with MRSA infection were more likely to be susceptible to ciprofloxacin, clindamycin, and erythromycin than were those from MRSA-colonized patients.