What is the mode of transmission for congenital syphilis?

Congenital syphilis is primarily transmitted through vertical transmission, meaning the bacteria, Treponema pallidum, is passed from an infected mother to her baby during pregnancy. This mode of transmission typically occurs through the placenta during gestation or at the time of delivery. Understanding this mechanism is crucial for neonatal nursing, as it highlights the importance of prenatal screening and treatment for syphilis in expectant mothers to prevent transmission to the infant.

Other routes of transmission listed, such as person-to-person contact, nosocomial transmission, and contaminated food, are not applicable to congenital syphilis. Congenital syphilis does not spread through typical contact methods or food; it is specifically a result of maternal infection affecting the fetus. This distinction is important in recognizing the specific risks and preventing congenital syphilis in neonates.