Plasmid DNA analysis of Staphylococcus epidermidis isolated from blood and colonization cultures in very low birth weight neonates

M A Valvano, A I Hartstein, V H Morthland, M E Dragoon, S A Potter, J W Reynolds, J H Crosa

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Abstract

We prospectively studied the course of colonization and sepsis with Staphylococcus epidermidis among 29 very low birth weight neonates undergoing prolonged umbilical catheterization. S. epidermidis bacteremia occurred in 7 patients. In 6 bacteremia was preceded by positive colonization cultures. Isolates obtained from nares, base of umbilicus, umbilical catheter entry sites, catheter tips and blood were examined for plasmid DNA profiles. In 4 patients the plasmid profiles of the catheter entry site isolates were identical with those of the blood isolates. In the other 3 bacteremic patients plasmid profiles of the catheter entry site and blood isolates were different. No correlation was observed in the plasmid DNA patterns of isolates obtained from catheter tip cultures as compared to the corresponding blood cultures. The blood isolates from bacteremic patients had different plasmid profiles.
Original languageEnglish
Pages (from-to)116-20
Number of pages5
JournalThe Pediatric Infectious Disease Journal
Volume7
Issue number2
Publication statusPublished - 1988

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    Valvano, M. A., Hartstein, A. I., Morthland, V. H., Dragoon, M. E., Potter, S. A., Reynolds, J. W., & Crosa, J. H. (1988). Plasmid DNA analysis of Staphylococcus epidermidis isolated from blood and colonization cultures in very low birth weight neonates. The Pediatric Infectious Disease Journal, 7(2), 116-20.