Children with congenital syphilis transmit mother-to-child infection from pregnant women to fetus at record high. For the past five years, the number has been around 20, which is a significant increase.

The Japan Society of Obstetrics and Gynecology issued a warning last month. The appeal states that the number of pregnant women infected with syphilis is rapidly increasing, and states, it is important that you do not become infected before you become pregnant. It is important to be treated for syphilis before becoming pregnant.