Problem: A 29-year-old transgender woman returns to the health department for treatment after receiving a positive test result for rectal chlamydia. Assuming this woman and her sex partner have received appropriate therapy for Chlamydia trachomatis and all symptoms have resolved, what instruction should she receive regarding resuming sexual activity? Abstain from sexual activity until 48 hours after completing therapy Abstain from sexual activity until 72 hours after completing therapy Abstain from sexual activity until 7 days after completing therapy Abstain from sexual activity until 14 days after completing therapy