The mother, who was negative for toxoplasma, chlamydia, rubella, human papilloma virus, syphilis, and human T cell leukemia virus type 1, had been treated with flomoxef 1 week prior to delivery because of inflammatory signs (white blood cell count (WBC), 10,540/μL, and C-reactive protein (CRP) level, 1.51 mg/dL). Here, CRP is linked to chlamydia trachomatis infectious disease.