Assignment task:
A 9-day-old infant girl is brought to the clinic with an injected conjunctiva and purulent discharge from both eyes. The infant is afebrile and otherwise appears well. She is breastfeeding and has appropriately been gaining weight since birth. The infant's mother was sexually active with a new sex partner, a cisgender man, late in the pregnancy. The clinician collects an ocular specimen for culture and decides to treat the infant presumptively for ophthalmia neonatorum. What is the appropriate treatment for ophthalmia neonatorum caused by Chlamydia trachomatis? Erythromycin ophthalmic ointment in each eye in a single application Oral erythromycin for 14 days Erythromycin ophthalmic ointment in each eye in a single application plus oral azithromycin for 3 days Erythromycin ophthalmic ointment in each eye in a single application plus oral amoxicillin for 7 days