Analysis on homology of Staphylococcus aureus carried by a mother and her newborn

Objective To study the homology of Staphylococcus aureus(S.aureus) isolated from a mother and her newborn,and to explore the possibility of transmission of S.aureus infection between mother and newborn.Methods Three S.aureus isolates from the umbilical secretion of a newborn with omphalitis and from the breast milk of the newborn's healthy mother were performed antimicrobial susceptibility testing,homology of S.aureus was analyzed through antimicrobial susceptibility testing phenotyping and pulsed-field gel electrophoresis(PFGE) genotyping.Results Three S.aureus isolates from the mother and newborn had the same antimicrobial susceptibility pattern and PFGE type.Conclusion S.aureus isolated from the mother and newborn were identical strains,suggesting a possibility of S.aureus transmission between mother and newborn.