Gestation at <37 weeks, duration of membrane rupture of ≥18 hours, or temperature of ≥100.4 ºF (≥38.0 ºC) are clinical indications for intrapartum prophylaxis if the GBS status is unknown ...
Currently antibiotic prophylaxis administered to a woman during labour is the main means of preventing GBS disease in newborn infants, but only if the bacterium is detected during pregnancy.
Ocular prophylaxis with silver nitrate and or antibiotics ... The mother's unknown Group B Strep (GBS) status required the infant to be monitored for 48 hours in the hospital.