[Editorial] Congenital syphilis in the USA
On Sept 25, the Centers for Disease Control and Prevention (CDC) reported that 918 babies were born with syphilis in the USA in 2017. The number has risen from 362 in 2013 and reached a 20-year high after years of sustained reduction. More than 5 million cases of syphilis are diagnosed each year, mainly in low-income and middle-income countries. But the incidence of syphilis has also risen recently in higher-income countries, including the USA. Although mainly in men who have sex with men, rates have also been increasing in women.