An infant male was born via vaginal delivery at 41 weeks to a 34-year old G1P0 mother who had been treated with a 3-day course of antibiotics for a skin infection. She was an occasional marijuana user. The pregnancy was well controlled; complicated only by a urinary tract infection which was adequately treated. The mother was found to be HIV and group B Streptococcus negative. Labour was induced over three days with oxytocin. Membranes ruptured spontaneously 12 hours prior to delivery and showed clear amniotic fluid. Delivery took place after a prolonged expulsion stage.

The infant was born crying. APGAR scores were 9 and 10 at 1 and 5 minutes respectively. Birth weight was 3340 g. No cord gas was taken at that time. The initial exam was normal and did not reveal any phenotypic alterations. The baby was subsequently sent with his mother. During his first hours of life he was fed breast…