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Updated: Aug 7, 2026

Subcutaneous Infection of Methicillin Resistant Staphylococcus Aureus (MRSA)
Published on: February 9, 2011
Ocular methicillin-resistant Staphylococcus aureus infections in a newborn intensive care cohort
1Program of Microbiology, Virology, and Infection Control, Department of Pathology and Laboratory Medicine, Children's and Women's Health Centre of British Columbia, Vancouver, British Columbia, Canada. ncimolai@interchange.ubc.ca
Purpose:
To examine the occurrence and outcome of methicillin-resistant Staphylococcus aureus ophthalmologic infections in a newborn intensive care unit cohort.
Design:
Noninterventional case series.
Methods:
Over a 13-month period, 29 neonates were colonized with methicillin-resistant S. aureus in a newborn intensive care unit outbreak. Patients were followed prospectively during the course of colonization and infection. The frequency and type of ophthalmologic infection was recorded, and patients were treated according to clinical need.
Results:
Eleven of these patients were found to have purulent conjunctivitis. No serious ocular disease ensued in any of these. Spontaneous resolution occurred in some patients, while others improved after either topical or systemic antibiotic treatment.
Conclusion:
Despite invasive infection caused by methicillin-resistant S. aureus, serious ophthalmologic infection was not found.
Insights
Methicillin-resistant Staphylococcus aureus (MRSA) outbreaks in NICUs can cause conjunctivitis in neonates. However, serious ocular infections were not observed in this cohort.
Area of Science:
- Neonatal Intensive Care Unit (NICU) infections
- Ophthalmology
- Infectious Diseases
Background:
- Methicillin-resistant Staphylococcus aureus (MRSA) is a significant pathogen in healthcare settings.
- Neonatal intensive care units are vulnerable to outbreaks of multidrug-resistant organisms.
- Ophthalmologic infections in neonates require prompt diagnosis and management.
Purpose of the Study:
- To investigate the incidence and clinical outcomes of MRSA-related ophthalmologic infections.
- To assess the severity and management of ocular infections during a NICU MRSA outbreak.
Main Methods:
- A noninterventional case series design was employed.
- Prospective follow-up of 29 neonates colonized with MRSA over 13 months.
- Documentation of ophthalmologic infection frequency, type, and treatment response.
Main Results:
- Eleven neonates developed purulent conjunctivitis during the MRSA outbreak.
- No cases of severe ocular disease were reported.
- Conjunctivitis resolved spontaneously or with topical/systemic antibiotic therapy.
Conclusions:
- MRSA colonization in neonates can lead to conjunctivitis.
- Serious ophthalmologic complications were not observed despite invasive MRSA infection.
- Prompt management of conjunctivitis is crucial in neonates with MRSA.
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