CDC: Maternal syphilis rate triples over six years

Syphilis infections during pregnancy more than tripled between 2016 and 2022 to 280 cases per 100,000 births, ranging from 46 per 100,000 in Maine to 763 per 100,000 in South Dakota, the Centers for Disease Control and Prevention reported Feb. 13. Rates doubled in seven states and grew fivefold in six states: New Mexico, Colorado, Mississippi, South Dakota, Montana and Alaska. Rates increased across all racial/ethnic and age groups, with the highest rates in mothers who were American Indian and Alaska Native, under age 25 and had no prenatal care.

According to a CDC report last November, over 3,700 mothers passed the infection onto their babies in 2022, 10 times more than in 2012, although timely testing and treatment could prevent most mothers from transmitting the infection to their babies. Congenital syphilis can cause adverse pregnancy outcomes such as fetal and neonatal death, low birthweight, preterm birth, and brain and nerve disorders.