in thefirst trial,womenwererandomizedtoreceiveantibioticsorplaceboforatotalofsevendays.Theantibioticregimenused48hoursofintravenoustherapyfollowedbyfive days of oral medications. The initial phase used ampicillin 2 g IV every 6 hours and erythromycin 250 mg IV every 6 hours. After 48 hours, these medications were changed to amoxicillin 250 mg orally every 8 hours and erythromycin 333mgorallyevery8hours.Antibiotictherapydidprolong pregnancy, with a two-fold likelihood that patients would not deliver after seven days of treatment. Treated women were more likely to remain pregnant for up to three weeks after randomization. Regarding neonatal morbidity, there wasadecreasefrom53