Results:
The prevalence of maternal MRSA colonization was 6.1% (55/898), and that of neonates was 0.8% (8/905). The prevalence of neonatal MRSA was 12.7% (7/55 mother-neonate pairs) in the MRSA-positive mothers, whereas it was only 0.12% (1/843 pairs) in the MRSA-negative mothers (OR: 121, 95% CI: 14.6-1000). When the maternal vaginal-MRSA was positive, the vertical transmission rate was 44.4% (4/9). Skin and soft tissue infections (SSTIs) developed significantly more frequently in neonates born to the MRSA-positive mothers (OR: 7.47, 95% CI: 2.50-22.3).