system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
Two days after delivery, a newborn develops a red, irritated eye with yellow discharge. She was born at 39 weeks' gestation to a 28-year-old woman, gravida 1, para 1. Pregnancy and delivery were uncomplicated. The mother had not seen her gynecologist since her first prenatal visit. The newborn's temperature is 37.2°C (99.0°F), pulse is 140/min, respirations are 42/min, and blood pressure is 73/53 mm Hg. Ophthalmic examination shows eyelid edema, conjunctival injection, and copious yellow mucopurulent discharge from the right eye. There is no corneal ulceration or evidence of keratitis. Funduscopic examination is normal. The diagnosis is confirmed and appropriate treatment is administered. Which of the following is most likely to have prevented this patient's condition?
assistant
Topical erythromycin administered to the infant