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Infection Control and Hospital Epidemiology Publication Info

Article DOI: 10.1086/502476
Stable URL: http://www.jstor.org/stable/10.1086/502476
Transmission of Methicillin‐Resistant Staphylococcus aureus to Preterm Infants Through Breast Milk • 
Priya Behari , MD, Janet Englund , MD, Grace Alcasid , MPH, MT(ASCP), Sylvia Garcia‐Houchins , CIC and Stephen G. Weber , MD, MSc
Infection Control and Hospital Epidemiology , Vol. 25, No. 9 (September 2004), pp. 778-780
Article DOI: 10.1086/502476
Article Stable URL: http://www.jstor.org/stable/10.1086/502476
Original Articles

Transmission of Methicillin‐Resistant Staphylococcus aureus to Preterm Infants Through Breast Milk

Formats Available in JSTOR: PDF

Abstract(back to top)

OBJECTIVE. To determine a potential source of MRSA colonization and infection among preterm infants in a neonatal intensive care unit (NICU) using molecular analysis of breast milk samples.

DESIGN. Case report, outbreak investigation.

RESULTS. Preterm triplets were delivered at 26 weeks’ gestation via cesarean section when routine active surveillance for MRSA was performed for all infants in a NICU. Surveillance consisted of swabbing the throat, nose, and umbilicus (TNU) weekly. Although infants A and B initially had negative TNU swabs, repeat cultures were positive for MRSA on day of life (DOL) 10 and DOL 18, respectively. Surveillance and clinical cultures for infant C were negative. Infant A developed sepsis, and multiple blood cultures were positive for MRSA beginning on DOL 14. Infant B developed conjunctivitis and a conjunctival exudate culture was positive for MRSA on DOL 70. Both infants were fed breast milk via nasogastric tube. Cultures of breast milk samples for infants A and B dated prior to either infant’s first positive surveillance culture were positive for MRSA. All MRSA isolates had identical results on antibiotic susceptibility testing. PFGE demonstrated identical banding patterns for the MRSA isolates from the blood culture of infant A, breast milk for infants A and B, and a surveillance swab from infant B. At no time did the mother develop evidence of mastitis or other local breast infection.

CONCLUSIONS. MRSA can be passed from mother to preterm infant through contaminated breast milk, even in the absence of maternal infection. Colonization and clinical disease can result.

Bibliographic Information(back to top)

  • Transmission of Methicillin‐Resistant Staphylococcus aureus to Preterm Infants Through Breast Milk
  • Priya Behari , MD, Janet Englund , MD, Grace Alcasid , MPH, MT(ASCP), Sylvia Garcia‐Houchins , CIC and Stephen G. Weber , MD, MSc
  • Infection Control and Hospital Epidemiology
  • Vol. 25, No. 9 (September 2004) (pp. 778-780)

Author Information(back to top)

Priya Behari , MD; Janet Englund , MD; Grace Alcasid , MPH, MT(ASCP); Sylvia Garcia‐Houchins , CIC; Stephen G. Weber , MD, MSc

Notes and References(back to top)

This item contains 1 note(s).

Notes

Drs. Behari and Weber are from the Section of Infectious Diseases; Dr. Englund is from the Section of Pediatric Infectious Diseases; and Ms. Alcasid, Ms. Garcia‐Houchins, and Dr. Weber are from the Infection Control Program, University of Chicago, Chicago, Illinois.Address reprint requests to Stephen Weber, MD, University of Chicago, 5841 S. Maryland Avenue MC 5065, Chicago, IL 60637‐1463.Presented in part at the 41st Annual Meeting of the Infectious Diseases Society of America; October 9‐12, 2003; San Diego, CA.

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© 2004 by The Society for Healthcare Epidemiology of America. All rights reserved.