161 – Higher Odds of Congenital Syphilis With 9- vs 7-Day Prenatal Treatment Intervals for Late Syphilis
Background Congenital syphilis (CS) is an urgent threat; cases are at their highest rate (102.5/100,000 live births) since 1991. The only treatment (tx) for late latent syphilis (LLS) in pregnancy is 3 doses of benzathine penicillin G (BPGx3), given at 7-day (d) intervals. If intervals exceed 9d, US guidelines recommend restarting the full tx series,…