
The rise in congenital syphilis cases in the United States is likely a result of multiple factors, researchers said.
A study of cases in Chicago over a recent 4-year period found that pregnant women who delivered infants with congenital syphilis were more likely to have initiated prenatal care and treatment later in pregnancy than women whose infants did not have congenital syphilis, suggesting that limited access to care is a contributing factor.
They also were more likely to have noninjection substance use and psychiatric illness, the study found.
“In the years leading up to the study,