New numbers show a 28% jump in cases over two years. We break down what's behind these numbers.

Syphilis has long been difficult to eradicate — and it’s having another resurgence. In the United States alone, more than 171,000 cases of the sexually-transmitted infection were reported in 2021, up ...

Scientists have used genomics to reveal distinct sexual networks for syphilis transmission, defined geographically or by sexual preference, among a background of wider circulation in England. They ...

If “syphilis” sounds to you like an illness people got in another century, you’re not alone. For decades, the infection was widely considered a disease of the past. But after years of decline, ...

Syphilis cases reached a six-year high in Hamilton County in 2023, according to an April report from the public health department. At 582 cases, the total represents an 80% increase since 2018, ...

The number of babies born with syphilis in the U.S. continued its upward climb in 2021, new data shows, worrying doctors and public health investigators in Texas who have been trying to draw attention ...