Main Findings
The actual prevalence of MRSA carriers in pregnant women in the TAJIMA area was 6.1%. The proportion of vaginal MRSA carriers was 1%. Being multiparous and a healthcare provider were independent risk factors for maternal MRSA colonization. MRSA was transmitted to neonates predominantly via a vertical route at vaginal delivery, and its frequency was as high as 44.4% in cases of MRSA-positive vaginas. Maternal MRSA colonization is a risk factor of SSTIs in their neonates.