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Methicillin-resistant Staphylococcus aureus colonization in a new nursing home
K Feingold1, E L Siegler, B Wu
1School of Arts and Sciences, University of Pennsylvania, Philadelphia.
Aging (Milan, Italy)
|October 1, 1994
Summary
Methicillin-resistant Staphylococcus aureus (MRSA) colonization is common in nursing homes, but patients can clear it. Universal precautions effectively prevent MRSA transmission in these facilities.
Area of Science:
- Infectious Diseases
- Healthcare Epidemiology
- Geriatric Medicine
Background:
- Methicillin-resistant Staphylococcus aureus (MRSA) is a significant concern in long-term care facilities.
- Existing research presents conflicting data on the infection risk for MRSA-colonized patients.
Purpose of the Study:
- To investigate the incidence and outcomes of MRSA colonization and infection in a new nursing home.
- To evaluate the effectiveness of universal precautions in preventing MRSA transmission.
Main Methods:
- Prospective study tracking MRSA colonization and infection in all admissions to a 60-bed nursing home ward over one year.
- Blinded culture results for patients and staff, adherence to universal precautions for all patients.
Main Results:
- Seven of the first 72 admitted patients (9.7%) were colonized with MRSA upon admission.
- No patients acquired MRSA infection within the facility; sporadic and brief acquisition occurred.
- Three patients spontaneously cleared MRSA colonization during the study period.
Conclusions:
- MRSA colonization at nursing home admission is frequent, but spontaneous clearance is possible.
- Universal precautions appear effective in controlling MRSA transmission in this setting.
- Targeted pre-screening based on risk factors may miss many colonized patients.