An image from an electron microscope of Treponema pallidum, the bacteria that causes syphilis. In 2022, the number of reported cases of syphilis in the United States was the highest it has been since ...

Congenital syphilis has become more than ten times as common over the past decade, the C.D.C. reported. “The situation is dire,” said one expert. By Apoorva Mandavilli See more of our coverage in your ...

Cases have risen by 80 percent since 2018, the C.D.C. reported. But chlamydia remains far more common. By Apoorva Mandavilli Syphilis, once nearly eliminated in the United States, continues to resurge ...

Syphilis is a sexually transmitted infection. Without treatment, the stages of syphilis include symptoms that worsen over time. They can lead to severe or possibly fatal complications. Syphilis is a ...

During its second stage, syphilis may lead to a rash on one or several parts of the body. It most commonly affects the trunk, palms of the hands, and soles of the feet. The rash typically does not ...