Reported cases of congenital syphilis – syphilis passed from a mother to her baby during pregnancy or delivery – have more than doubled since 2013, according to the annual Sexually Transmitted Disease Surveillance Report released today by the Centers for Disease Control and Prevention (CDC). The data underscore the need for all pregnant women to receive early prenatal care that includes syphilis testing at their first visit and follow-up testing for women at high risk of infection.